231161444023 has 2 divisors, whose sum is σ = 231161444024. Its totient is φ = 231161444022.

The previous prime is 231161444021. The next prime is 231161444047. The reversal of 231161444023 is 320444161132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231161444023 - 2¹ = 231161444021 is a prime.

It is a super-2 number, since 2×231161444023² (a number of 24 digits) contains 22 as substring.

Together with 231161444021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231161444021) 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, 115580722011 + 115580722012.

It is an arithmetic number, because the mean of its divisors is an integer number (115580722012).

Almost surely, 2^231161444023 is an apocalyptic number.

231161444023 is a deficient number, since it is larger than the sum of its proper divisors (1).

231161444023 is an equidigital number, since it uses as much as digits as its factorization.

231161444023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 231161444023 in words is "two hundred thirty-one billion, one hundred sixty-one million, four hundred forty-four thousand, twenty-three".