23312131232 has 24 divisors (see below), whose sum is σ = 49426202196. Its totient is φ = 10759444992.

The previous prime is 23312131231. The next prime is 23312131273. The reversal of 23312131232 is 23213121332.

It can be written as a sum of positive squares in 2 ways, for example, as 17475782416 + 5836348816 = 132196^2 + 76396^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23312131198 and 23312131207.

It is not an unprimeable number, because it can be changed into a prime (23312131231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28018973 + ... + 28019804.

Almost surely, 2^23312131232 is an apocalyptic number.

It is an amenable number.

23312131232 is an abundant number, since it is smaller than the sum of its proper divisors (26114070964).

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

23312131232 is a wasteful number, since it uses less digits than its factorization.

23312131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56038800 (or 56038792 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 23312131232 its reverse (23213121332), we get a palindrome (46525252564).

The spelling of 23312131232 in words is "twenty-three billion, three hundred twelve million, one hundred thirty-one thousand, two hundred thirty-two".