23131210012 has 6 divisors (see below), whose sum is σ = 40479617528. Its totient is φ = 11565605004.

The previous prime is 23131210007. The next prime is 23131210049. The reversal of 23131210012 is 21001213132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2891401248 + ... + 2891401255.

Almost surely, 2^23131210012 is an apocalyptic number.

It is an amenable number.

23131210012 is a deficient number, since it is larger than the sum of its proper divisors (17348407516).

23131210012 is a wasteful number, since it uses less digits than its factorization.

23131210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782802507 (or 5782802505 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23131210012 its reverse (21001213132), we get a palindrome (44132423144).

The spelling of 23131210012 in words is "twenty-three billion, one hundred thirty-one million, two hundred ten thousand, twelve".