231015838752 has 72 divisors (see below), whose sum is σ = 681282843696. Its totient is φ = 77005276992.

The previous prime is 231015838733. The next prime is 231015838759. The reversal of 231015838752 is 257838510132.

231015838752 is a `hidden beast` number, since 2 + 3 + 10 + 1 + 583 + 8 + 7 + 52 = 666.

231015838752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 231015838698 and 231015838707.

It is not an unprimeable number, because it can be changed into a prime (231015838759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14846638 + ... + 14862189.

It is an arithmetic number, because the mean of its divisors is an integer number (9462261718).

Almost surely, 2^231015838752 is an apocalyptic number.

It is an amenable number.

231015838752 is an abundant number, since it is smaller than the sum of its proper divisors (450267004944).

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

231015838752 is an equidigital number, since it uses as much as digits as its factorization.

231015838752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29708852 (or 29708832 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 231015838752 in words is "two hundred thirty-one billion, fifteen million, eight hundred thirty-eight thousand, seven hundred fifty-two".