20113013312 has 56 divisors (see below), whose sum is σ = 48014168640. Its totient is φ = 8166182400.

The previous prime is 20113013303. The next prime is 20113013339. The reversal of 20113013312 is 21331031102.

It is a tau number, because it is divible by the number of its divisors (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172939 + ... + 1189962.

Almost surely, 2^20113013312 is an apocalyptic number.

It is an amenable number.

20113013312 is an abundant number, since it is smaller than the sum of its proper divisors (27901155328).

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

20113013312 is a wasteful number, since it uses less digits than its factorization.

20113013312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362939 (or 2362929 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20113013312 its reverse (21331031102), we get a palindrome (41444044414).

The spelling of 20113013312 in words is "twenty billion, one hundred thirteen million, thirteen thousand, three hundred twelve".