231117615227 has 2 divisors, whose sum is σ = 231117615228. Its totient is φ = 231117615226.

The previous prime is 231117615191. The next prime is 231117615251. The reversal of 231117615227 is 722516711132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231117615227 - 2¹⁴ = 231117598843 is a prime.

It is not a weakly prime, because it can be changed into another prime (231117615427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115558807613 + 115558807614.

It is an arithmetic number, because the mean of its divisors is an integer number (115558807614).

Almost surely, 2^231117615227 is an apocalyptic number.

231117615227 is a deficient number, since it is larger than the sum of its proper divisors (1).

231117615227 is an equidigital number, since it uses as much as digits as its factorization.

231117615227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35280, while the sum is 38.

The spelling of 231117615227 in words is "two hundred thirty-one billion, one hundred seventeen million, six hundred fifteen thousand, two hundred twenty-seven".