23311111012 has 12 divisors (see below), whose sum is σ = 46622222080. Its totient is φ = 9990476136.

The previous prime is 23311110983. The next prime is 23311111079. The reversal of 23311111012 is 21011111332.

It is a happy number.

23311111012 is an admirable number.

It is a super-2 number, since 2×23311111012² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 416269812 + ... + 416269867.

Almost surely, 2^23311111012 is an apocalyptic number.

It is an amenable number.

23311111012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23311111012 is a wasteful number, since it uses less digits than its factorization.

23311111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832539690 (or 832539688 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 23311111012 its reverse (21011111332), we get a palindrome (44322222344).

The spelling of 23311111012 in words is "twenty-three billion, three hundred eleven million, one hundred eleven thousand, twelve".