23513831532 has 36 divisors (see below), whose sum is σ = 59745726040. Its totient is φ = 7797330432.

The previous prime is 23513831531. The next prime is 23513831563.

23513831532 is a `hidden beast` number, since 2 + 35 + 13 + 83 + 1 + 532 = 666.

23513831532 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23513831531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685182 + ... + 1699077.

Almost surely, 2^23513831532 is an apocalyptic number.

It is an amenable number.

23513831532 is an abundant number, since it is smaller than the sum of its proper divisors (36231894508).

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

23513831532 is a wasteful number, since it uses less digits than its factorization.

23513831532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384462 (or 3384457 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The spelling of 23513831532 in words is "twenty-three billion, five hundred thirteen million, eight hundred thirty-one thousand, five hundred thirty-two".