20112500312 has 32 divisors (see below), whose sum is σ = 39810225600. Its totient is φ = 9499493664.

The previous prime is 20112500311. The next prime is 20112500327. The reversal of 20112500312 is 21300521102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112500311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137918 + ... + 243405.

It is an arithmetic number, because the mean of its divisors is an integer number (1244069550).

Almost surely, 2^20112500312 is an apocalyptic number.

It is an amenable number.

20112500312 is a deficient number, since it is larger than the sum of its proper divisors (19697725288).

20112500312 is a wasteful number, since it uses less digits than its factorization.

20112500312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381695 (or 381691 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The spelling of 20112500312 in words is "twenty billion, one hundred twelve million, five hundred thousand, three hundred twelve".