20112423112056 has 64 divisors (see below), whose sum is σ = 55751277225600. Its totient is φ = 5994760982400.

The previous prime is 20112423112039. The next prime is 20112423112069. The reversal of 20112423112056 is 65021132421102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 624438166 + ... + 624470373.

It is an arithmetic number, because the mean of its divisors is an integer number (871113706650).

Almost surely, 2^{20112423112056} is an apocalyptic number.

It is an amenable number.

20112423112056 is an abundant number, since it is smaller than the sum of its proper divisors (35638854113544).

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

20112423112056 is a wasteful number, since it uses less digits than its factorization.

20112423112056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248908620 (or 1248908616 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 20112423112056 its reverse (65021132421102), we get a palindrome (85133555533158).

The spelling of 20112423112056 in words is "twenty trillion, one hundred twelve billion, four hundred twenty-three million, one hundred twelve thousand, fifty-six".