123020013112192 has 64 divisors (see below), whose sum is σ = 280562537138400. Its totient is φ = 52633953828864.

The previous prime is 123020013112153. The next prime is 123020013112211. The reversal of 123020013112192 is 291211310020321.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×123020013112192² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 123020013112192.

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 7 ways as a sum of consecutive naturals, for example, 115235217 + ... + 116297872.

Almost surely, 2^{123020013112192} is an apocalyptic number.

It is an amenable number.

123020013112192 is an abundant number, since it is smaller than the sum of its proper divisors (157542524026208).

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

123020013112192 is an equidigital number, since it uses as much as digits as its factorization.

123020013112192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231533703 (or 231533691 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 123020013112192 in words is "one hundred twenty-three trillion, twenty billion, thirteen million, one hundred twelve thousand, one hundred ninety-two".