117228911 has 2 divisors, whose sum is σ = 117228912. Its totient is φ = 117228910.

The previous prime is 117228901. The next prime is 117228919. The reversal of 117228911 is 119822711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117228911 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117228919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58614455 + 58614456.

It is an arithmetic number, because the mean of its divisors is an integer number (58614456).

Almost surely, 2^117228911 is an apocalyptic number.

117228911 is a deficient number, since it is larger than the sum of its proper divisors (1).

117228911 is an equidigital number, since it uses as much as digits as its factorization.

117228911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 32.

The square root of 117228911 is about 10827.2300705213. The cubic root of 117228911 is about 489.4160905209.

The spelling of 117228911 in words is "one hundred seventeen million, two hundred twenty-eight thousand, nine hundred eleven".