231257082005 has 32 divisors (see below), whose sum is σ = 299345269248. Its totient is φ = 170869478400.

The previous prime is 231257081969. The next prime is 231257082029. The reversal of 231257082005 is 500280752132.

It is not a de Polignac number, because 231257082005 - 2³⁴ = 214077212821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 2182994 + ... + 2286476.

It is an arithmetic number, because the mean of its divisors is an integer number (9354539664).

Almost surely, 2^231257082005 is an apocalyptic number.

It is an amenable number.

231257082005 is a deficient number, since it is larger than the sum of its proper divisors (68088187243).

231257082005 is a wasteful number, since it uses less digits than its factorization.

231257082005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103997.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 231257082005 in words is "two hundred thirty-one billion, two hundred fifty-seven million, eighty-two thousand, five".