231124663872 has 84 divisors (see below), whose sum is σ = 687013353936. Its totient is φ = 77041549440.

The previous prime is 231124663853. The next prime is 231124663873. The reversal of 231124663872 is 278366421132.

231124663872 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 2 + 4 + 6 + 638 + 7 + 2 = 666.

It is a super-2 number, since 2×231124663872² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231124663873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7415154 + ... + 7446257.

It is an arithmetic number, because the mean of its divisors is an integer number (8178730404).

Almost surely, 2^231124663872 is an apocalyptic number.

It is an amenable number.

231124663872 is an abundant number, since it is smaller than the sum of its proper divisors (455888690064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231124663872 is an equidigital number, since it uses as much as digits as its factorization.

231124663872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14861438 (or 14861416 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The spelling of 231124663872 in words is "two hundred thirty-one billion, one hundred twenty-four million, six hundred sixty-three thousand, eight hundred seventy-two".