23312002312 has 16 divisors (see below), whose sum is σ = 43733369340. Its totient is φ = 11649770496.

The previous prime is 23312002283. The next prime is 23312002313. The reversal of 23312002312 is 21320021332.

It can be written as a sum of positive squares in 2 ways, for example, as 23230027396 + 81974916 = 152414^2 + 9054^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23312002312.

It is not an unprimeable number, because it can be changed into a prime (23312002313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 762913 + ... + 792880.

Almost surely, 2^23312002312 is an apocalyptic number.

It is an amenable number.

23312002312 is a deficient number, since it is larger than the sum of its proper divisors (20421367028).

23312002312 is a wasteful number, since it uses less digits than its factorization.

23312002312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557672 (or 1557668 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23312002312 its reverse (21320021332), we get a palindrome (44632023644).

The spelling of 23312002312 in words is "twenty-three billion, three hundred twelve million, two thousand, three hundred twelve".