911 (nine hundred [and] eleven) is the integer following 910 and preceding 912.
|Cardinal||nine hundred eleven|
(nine hundred eleventh)
It is a prime number, a Sophie Germain prime and the sum of three consecutive primes (293 + 307 + 311). It is an Eisenstein prime with no imaginary part and real part of the form 3n − 1. Since 913 is a semiprime, 911 is a Chen prime. It is also a centered decagonal number.
911 is obtained by concatenating its product of digits and sum of digits.