231534525521325 has 24 divisors (see below), whose sum is σ = 412250191083808. Its totient is φ = 113986227948480.

The previous prime is 231534525521309. The next prime is 231534525521339. The reversal of 231534525521325 is 523125525435132.

231534525521325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231534525521325 - 2⁴ = 231534525521309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118735653139 + ... + 118735655088.

Almost surely, 2^{231534525521325} is an apocalyptic number.

231534525521325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231534525521325 is a deficient number, since it is larger than the sum of its proper divisors (180715665562483).

231534525521325 is a wasteful number, since it uses less digits than its factorization.

231534525521325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237471308253 (or 237471308248 counting only the distinct ones).

The product of its digits is 5400000, while the sum is 48.

The spelling of 231534525521325 in words is "two hundred thirty-one trillion, five hundred thirty-four billion, five hundred twenty-five million, five hundred twenty-one thousand, three hundred twenty-five".