Undefined Character (U+13689)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𓚉` `𓚉`
UTF-8 Encoding:	`0xF0 0x93 0x9A 0x89`
UTF-16 Encoding:	`0xD80D 0xDE89`
UTF-32 Encoding:	`0x00013689`

References