Undefined Character (U+12F31)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𒼱` `𒼱`
UTF-8 Encoding:	`0xF0 0x92 0xBC 0xB1`
UTF-16 Encoding:	`0xD80B 0xDF31`
UTF-32 Encoding:	`0x00012F31`

References