23311012312 has 32 divisors (see below), whose sum is σ = 50000371200. Its totient is φ = 9980793504.

The previous prime is 23311012297. The next prime is 23311012321. The reversal of 23311012312 is 21321011332.

It is a self number, because there is not a number n which added to its sum of digits gives 23311012312.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 142138 + ... + 258505.

It is an arithmetic number, because the mean of its divisors is an integer number (1562511600).

Almost surely, 2^23311012312 is an apocalyptic number.

It is an amenable number.

23311012312 is an abundant number, since it is smaller than the sum of its proper divisors (26689358888).

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

23311012312 is a wasteful number, since it uses less digits than its factorization.

23311012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401695 (or 401691 counting only the distinct ones).

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

Adding to 23311012312 its reverse (21321011332), we get a palindrome (44632023644).

The spelling of 23311012312 in words is "twenty-three billion, three hundred eleven million, twelve thousand, three hundred twelve".