Undefined Character (U+1391F)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𓤟` `𓤟`
UTF-8 Encoding:	`0xF0 0x93 0xA4 0x9F`
UTF-16 Encoding:	`0xD80E 0xDD1F`
UTF-32 Encoding:	`0x0001391F`

References