231597795132 has 96 divisors (see below), whose sum is σ = 659736940800. Its totient is φ = 69676200000.

The previous prime is 231597795131. The next prime is 231597795139.

It is a happy number.

231597795132 is a `hidden beast` number, since 2 + 3 + 1 + 59 + 7 + 79 + 513 + 2 = 666.

231597795132 is nontrivially palindromic in base 10.

231597795132 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231597795131) 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 in 31 ways as a sum of consecutive naturals, for example, 536119 + ... + 866382.

It is an arithmetic number, because the mean of its divisors is an integer number (6872259800).

Almost surely, 2^231597795132 is an apocalyptic number.

231597795132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231597795132 is an abundant number, since it is smaller than the sum of its proper divisors (428139145668).

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

231597795132 is a wasteful number, since it uses less digits than its factorization.

231597795132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402664 (or 1402656 counting only the distinct ones).

The product of its digits is 3572100, while the sum is 54.

The spelling of 231597795132 in words is "two hundred thirty-one billion, five hundred ninety-seven million, seven hundred ninety-five thousand, one hundred thirty-two".