23312130012 has 72 divisors (see below), whose sum is σ = 59241611520. Its totient is φ = 7729428000.

The previous prime is 23312130011. The next prime is 23312130019. The reversal of 23312130012 is 21003121332.

23312130012 is a `hidden beast` number, since 2 + 331 + 21 + 300 + 12 = 666.

It is a super-2 number, since 2×23312130012² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23312130011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9965539 + ... + 9967877.

It is an arithmetic number, because the mean of its divisors is an integer number (822800160).

Almost surely, 2^23312130012 is an apocalyptic number.

It is an amenable number.

23312130012 is an abundant number, since it is smaller than the sum of its proper divisors (35929481508).

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

23312130012 is a wasteful number, since it uses less digits than its factorization.

23312130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 23312130012 its reverse (21003121332), we get a palindrome (44315251344).

The spelling of 23312130012 in words is "twenty-three billion, three hundred twelve million, one hundred thirty thousand, twelve".