231025658402072 has 16 divisors (see below), whose sum is σ = 433352328865560. Its totient is φ = 115465037371264.

The previous prime is 231025658402057. The next prime is 231025658402093. The reversal of 231025658402072 is 270204856520132.

It is a super-2 number, since 2×231025658402072² (a number of 30 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 5973958178 + ... + 5973996849.

Almost surely, 2^{231025658402072} is an apocalyptic number.

It is an amenable number.

231025658402072 is a deficient number, since it is larger than the sum of its proper divisors (202326670463488).

231025658402072 is a wasteful number, since it uses less digits than its factorization.

231025658402072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11947957450 (or 11947957446 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 231025658402072 in words is "two hundred thirty-one trillion, twenty-five billion, six hundred fifty-eight million, four hundred two thousand, seventy-two".