Undefined Character (U+181B)

Block:	Mongolian, U+1800 - U+18AF^[1]
Plane:	Basic Multilingual Plane, U+0000 - U+FFFF^[1]
HTML Entity:	`᠛` `᠛`
UTF-8 Encoding:	`0xE1 0xA0 0x9B`
UTF-16 Encoding:	`0x181B`
UTF-32 Encoding:	`0x0000181B`

References