23221131232 has 48 divisors (see below), whose sum is σ = 52129354032. Its totient is φ = 10087004160.

The previous prime is 23221131229. The next prime is 23221131233. The reversal of 23221131232 is 23213112232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221131233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1634694 + ... + 1648837.

It is an arithmetic number, because the mean of its divisors is an integer number (1086028209).

Almost surely, 2^23221131232 is an apocalyptic number.

It is an amenable number.

23221131232 is an abundant number, since it is smaller than the sum of its proper divisors (28908222800).

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

23221131232 is a wasteful number, since it uses less digits than its factorization.

23221131232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283571 (or 3283563 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 23221131232 its reverse (23213112232), we get a palindrome (46434243464).

The spelling of 23221131232 in words is "twenty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, two hundred thirty-two".