Undefined Character (U+11BF9)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𑯹` `𑯹`
UTF-8 Encoding:	`0xF0 0x91 0xAF 0xB9`
UTF-16 Encoding:	`0xD806 0xDFF9`
UTF-32 Encoding:	`0x00011BF9`

References