23131202012 has 6 divisors (see below), whose sum is σ = 40479603528. Its totient is φ = 11565601004.

The previous prime is 23131202011. The next prime is 23131202021. The reversal of 23131202012 is 21020213132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131202011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2891400248 + ... + 2891400255.

It is an arithmetic number, because the mean of its divisors is an integer number (6746600588).

Almost surely, 2^23131202012 is an apocalyptic number.

It is an amenable number.

23131202012 is a deficient number, since it is larger than the sum of its proper divisors (17348401516).

23131202012 is a wasteful number, since it uses less digits than its factorization.

23131202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782800507 (or 5782800505 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23131202012 its reverse (21020213132), we get a palindrome (44151415144).

It can be divided in two parts, 2313120 and 2012, that added together give a palindrome (2315132).

The spelling of 23131202012 in words is "twenty-three billion, one hundred thirty-one million, two hundred two thousand, twelve".