23131132012 has 12 divisors (see below), whose sum is σ = 40480757856. Its totient is φ = 11565201200.

The previous prime is 23131132001. The next prime is 23131132033. The reversal of 23131132012 is 21023113132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92637 + ... + 234187.

It is an arithmetic number, because the mean of its divisors is an integer number (3373396488).

Almost surely, 2^23131132012 is an apocalyptic number.

It is an amenable number.

23131132012 is a deficient number, since it is larger than the sum of its proper divisors (17349625844).

23131132012 is a wasteful number, since it uses less digits than its factorization.

23131132012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182408 (or 182406 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23131132012 its reverse (21023113132), we get a palindrome (44154245144).

The spelling of 23131132012 in words is "twenty-three billion, one hundred thirty-one million, one hundred thirty-two thousand, twelve".