231155432155252 has 48 divisors (see below), whose sum is σ = 441568246129920. Its totient is φ = 105006010262400.

The previous prime is 231155432155243. The next prime is 231155432155283. The reversal of 231155432155252 is 252551234551132.

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 15 ways as a sum of consecutive naturals, for example, 2579901318 + ... + 2579990914.

It is an arithmetic number, because the mean of its divisors is an integer number (9199338461040).

Almost surely, 2^{231155432155252} is an apocalyptic number.

231155432155252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231155432155252 is a deficient number, since it is larger than the sum of its proper divisors (210412813974668).

231155432155252 is a wasteful number, since it uses less digits than its factorization.

231155432155252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125032 (or 125030 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 46.

The spelling of 231155432155252 in words is "two hundred thirty-one trillion, one hundred fifty-five billion, four hundred thirty-two million, one hundred fifty-five thousand, two hundred fifty-two".