23531530204 has 96 divisors (see below), whose sum is σ = 52515550080. Its totient is φ = 8973683712.

The previous prime is 23531530193. The next prime is 23531530241. The reversal of 23531530204 is 40203513532.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8411734 + ... + 8414530.

It is an arithmetic number, because the mean of its divisors is an integer number (547036980).

Almost surely, 2^23531530204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23531530204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26257775040).

23531530204 is an abundant number, since it is smaller than the sum of its proper divisors (28984019876).

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

23531530204 is a wasteful number, since it uses less digits than its factorization.

23531530204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 23531530204 in words is "twenty-three billion, five hundred thirty-one million, five hundred thirty thousand, two hundred four".