Undefined Character (U+12F23)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𒼣` `𒼣`
UTF-8 Encoding:	`0xF0 0x92 0xBC 0xA3`
UTF-16 Encoding:	`0xD80B 0xDF23`
UTF-32 Encoding:	`0x00012F23`

References