23311311212 has 48 divisors (see below), whose sum is σ = 47240155200. Its totient is φ = 9858834432.

The previous prime is 23311311181. The next prime is 23311311253. The reversal of 23311311212 is 21211311332.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 935588 + ... + 960180.

It is an arithmetic number, because the mean of its divisors is an integer number (984169900).

Almost surely, 2^23311311212 is an apocalyptic number.

It is an amenable number.

23311311212 is an abundant number, since it is smaller than the sum of its proper divisors (23928843988).

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

23311311212 is a wasteful number, since it uses less digits than its factorization.

23311311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25050 (or 25048 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 23311311212 its reverse (21211311332), we get a palindrome (44522622544).

The spelling of 23311311212 in words is "twenty-three billion, three hundred eleven million, three hundred eleven thousand, two hundred twelve".