diff --git a/src/NodeParser/TypeLiteralNodeParser.ts b/src/NodeParser/TypeLiteralNodeParser.ts
index 4c1b4a5ea..e5098b3a1 100644
--- a/src/NodeParser/TypeLiteralNodeParser.ts
+++ b/src/NodeParser/TypeLiteralNodeParser.ts
@@ -93,8 +93,10 @@ export class TypeLiteralNodeParser implements SubNodeParser {
         } catch {
             // When propertyName was programmatically created, it doesn't have a source file.
             // Then, getText() will throw an error. But, for programmatically created nodes,`
-            // `escapedText` is available.
-            return (propertyName as ts.Identifier).escapedText as string;
+            // `escapedText` or `text` is available.
+            // Only `text` will be available when propertyName contains strange characters and it cannot be escaped
+            // or if it is a number.
+            return ((propertyName as ts.Identifier).escapedText as string) ?? (propertyName as ts.StringLiteral).text;
         }
     }
 }
diff --git a/test/valid-data-struct.test.ts b/test/valid-data-struct.test.ts
index 0e8b7a27f..9cdb5463c 100644
--- a/test/valid-data-struct.test.ts
+++ b/test/valid-data-struct.test.ts
@@ -36,4 +36,6 @@ describe("valid-data-struct", () => {
     it("structure-anonymous", assertValidSchema("structure-anonymous", "MyObject"));
     it("structure-recursion", assertValidSchema("structure-recursion", "MyObject"));
     it("structure-extra-props", assertValidSchema("structure-extra-props", "MyObject"));
+
+    it("string-literal-property-names", assertValidSchema("string-literal-property-names", "*"));
 });
diff --git a/test/valid-data/string-literal-property-names/main.ts b/test/valid-data/string-literal-property-names/main.ts
new file mode 100644
index 000000000..1455efa22
--- /dev/null
+++ b/test/valid-data/string-literal-property-names/main.ts
@@ -0,0 +1,38 @@
+// Class props has only implicit types!
+export class MyClass {
+    PROP_1 = '';
+    "PROP_2" = '';
+    "PROP.3" = '';
+    "{PROP_4}" =  '';
+    "400" = '';
+    500 = '';
+    '' = '';
+    CHILD = {
+        PROP_1: '',
+        "PROP_2": '',
+        "PROP.3": '',
+        "{PROP_4}":  '',
+        "400": '',
+        500: '',
+        '': '',
+    };
+}
+
+export interface MyInterface {
+    PROP_1: string;
+    "PROP_2": string;
+    "PROP.3": string;
+    "{PROP_4}":  string;
+    "400": string;
+    500: string;
+    '': string;
+    CHILD : {
+        PROP_1: string,
+        "PROP_2": string,
+        "PROP.3": string,
+        "{PROP_4}":  string,
+        "400": string,
+        500: string,
+        '': string
+    };
+}
diff --git a/test/valid-data/string-literal-property-names/schema.json b/test/valid-data/string-literal-property-names/schema.json
new file mode 100644
index 000000000..27291434f
--- /dev/null
+++ b/test/valid-data/string-literal-property-names/schema.json
@@ -0,0 +1,151 @@
+{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "definitions": {
+    "MyClass": {
+      "additionalProperties": false,
+      "properties": {
+        "": {
+          "type": "string"
+        },
+        "400": {
+          "type": "string"
+        },
+        "500": {
+          "type": "string"
+        },
+        "CHILD": {
+          "additionalProperties": false,
+          "properties": {
+            "": {
+              "type": "string"
+            },
+            "400": {
+              "type": "string"
+            },
+            "500": {
+              "type": "string"
+            },
+            "PROP.3": {
+              "type": "string"
+            },
+            "PROP_1": {
+              "type": "string"
+            },
+            "PROP_2": {
+              "type": "string"
+            },
+            "{PROP_4}": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "PROP_1",
+            "PROP_2",
+            "PROP.3",
+            "{PROP_4}",
+            "400",
+            "500",
+            ""
+          ],
+          "type": "object"
+        },
+        "PROP.3": {
+          "type": "string"
+        },
+        "PROP_1": {
+          "type": "string"
+        },
+        "PROP_2": {
+          "type": "string"
+        },
+        "{PROP_4}": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "PROP_1",
+        "PROP_2",
+        "PROP.3",
+        "{PROP_4}",
+        "400",
+        "500",
+        "",
+        "CHILD"
+      ],
+      "type": "object"
+    },
+    "MyInterface": {
+      "additionalProperties": false,
+      "properties": {
+        "": {
+          "type": "string"
+        },
+        "400": {
+          "type": "string"
+        },
+        "500": {
+          "type": "string"
+        },
+        "CHILD": {
+          "additionalProperties": false,
+          "properties": {
+            "": {
+              "type": "string"
+            },
+            "400": {
+              "type": "string"
+            },
+            "500": {
+              "type": "string"
+            },
+            "PROP.3": {
+              "type": "string"
+            },
+            "PROP_1": {
+              "type": "string"
+            },
+            "PROP_2": {
+              "type": "string"
+            },
+            "{PROP_4}": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "PROP_1",
+            "PROP_2",
+            "PROP.3",
+            "{PROP_4}",
+            "400",
+            "500",
+            ""
+          ],
+          "type": "object"
+        },
+        "PROP.3": {
+          "type": "string"
+        },
+        "PROP_1": {
+          "type": "string"
+        },
+        "PROP_2": {
+          "type": "string"
+        },
+        "{PROP_4}": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "PROP_1",
+        "PROP_2",
+        "PROP.3",
+        "{PROP_4}",
+        "400",
+        "500",
+        "",
+        "CHILD"
+      ],
+      "type": "object"
+    }
+  }
+}
\ No newline at end of file