125032023521 has 16 divisors (see below), whose sum is σ = 133000588800. Its totient is φ = 117132922368.

The previous prime is 125032023497. The next prime is 125032023539. The reversal of 125032023521 is 125320230521.

It is a happy number.

It is not a de Polignac number, because 125032023521 - 2³⁴ = 107852154337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125032023541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3199820 + ... + 3238658.

It is an arithmetic number, because the mean of its divisors is an integer number (8312536800).

Almost surely, 2^125032023521 is an apocalyptic number.

It is an amenable number.

125032023521 is a deficient number, since it is larger than the sum of its proper divisors (7968565279).

125032023521 is a wasteful number, since it uses less digits than its factorization.

125032023521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39728.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 125032023521 in words is "one hundred twenty-five billion, thirty-two million, twenty-three thousand, five hundred twenty-one".