231116356027331 has 2 divisors, whose sum is σ = 231116356027332. Its totient is φ = 231116356027330.

The previous prime is 231116356027267. The next prime is 231116356027379. The reversal of 231116356027331 is 133720653611132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231116356027331 - 2⁶ = 231116356027267 is a prime.

It is a super-2 number, since 2×231116356027331² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231116356027631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115558178013665 + 115558178013666.

It is an arithmetic number, because the mean of its divisors is an integer number (115558178013666).

Almost surely, 2^{231116356027331} is an apocalyptic number.

231116356027331 is a deficient number, since it is larger than the sum of its proper divisors (1).

231116356027331 is an equidigital number, since it uses as much as digits as its factorization.

231116356027331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 231116356027331 in words is "two hundred thirty-one trillion, one hundred sixteen billion, three hundred fifty-six million, twenty-seven thousand, three hundred thirty-one".