23131130312 has 8 divisors (see below), whose sum is σ = 43370869350. Its totient is φ = 11565565152.

The previous prime is 23131130303. The next prime is 23131130357. The reversal of 23131130312 is 21303113132.

It can be written as a sum of positive squares in only one way, i.e., 17383367716 + 5747762596 = 131846^2 + 75814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445695637 + ... + 1445695652.

Almost surely, 2^23131130312 is an apocalyptic number.

It is an amenable number.

23131130312 is a deficient number, since it is larger than the sum of its proper divisors (20239739038).

23131130312 is a wasteful number, since it uses less digits than its factorization.

23131130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891391295 (or 2891391291 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 23131130312 its reverse (21303113132), we get a palindrome (44434243444).

The spelling of 23131130312 in words is "twenty-three billion, one hundred thirty-one million, one hundred thirty thousand, three hundred twelve".