23431133012 has 36 divisors (see below), whose sum is σ = 47708781120. Its totient is φ = 10039874544.

The previous prime is 23431133003. The next prime is 23431133017. The reversal of 23431133012 is 21033113432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431133017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1336439 + ... + 1353857.

It is an arithmetic number, because the mean of its divisors is an integer number (1325243920).

Almost surely, 2^23431133012 is an apocalyptic number.

It is an amenable number.

23431133012 is an abundant number, since it is smaller than the sum of its proper divisors (24277648108).

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

23431133012 is a wasteful number, since it uses less digits than its factorization.

23431133012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24300 (or 24291 counting only the distinct ones).

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

Adding to 23431133012 its reverse (21033113432), we get a palindrome (44464246444).

The spelling of 23431133012 in words is "twenty-three billion, four hundred thirty-one million, one hundred thirty-three thousand, twelve".