123350253031520 has 48 divisors (see below), whose sum is σ = 291436375613040. Its totient is φ = 49336477453824.

The previous prime is 123350253031519. The next prime is 123350253031583. The reversal of 123350253031520 is 25130352053321.

It is a super-2 number, since 2×123350253031520² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 26124767 + ... + 30482846.

It is an arithmetic number, because the mean of its divisors is an integer number (6071591158605).

Almost surely, 2^{123350253031520} is an apocalyptic number.

123350253031520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123350253031520 is an abundant number, since it is smaller than the sum of its proper divisors (168086122581520).

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

123350253031520 is a wasteful number, since it uses less digits than its factorization.

123350253031520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56621247 (or 56621239 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 123350253031520 in words is "one hundred twenty-three trillion, three hundred fifty billion, two hundred fifty-three million, thirty-one thousand, five hundred twenty".