123255324255345 has 32 divisors (see below), whose sum is σ = 197435432430720. Its totient is φ = 65660545566720.

The previous prime is 123255324255293. The next prime is 123255324255373. The reversal of 123255324255345 is 543552423552321.

It is not a de Polignac number, because 123255324255345 - 2¹² = 123255324251249 is a prime.

It is a super-2 number, since 2×123255324255345² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191717322 + ... + 192359148.

It is an arithmetic number, because the mean of its divisors is an integer number (6169857263460).

Almost surely, 2^{123255324255345} is an apocalyptic number.

123255324255345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123255324255345 is a deficient number, since it is larger than the sum of its proper divisors (74180108175375).

123255324255345 is a wasteful number, since it uses less digits than its factorization.

123255324255345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656545.

The product of its digits is 21600000, while the sum is 51.

The spelling of 123255324255345 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, three hundred twenty-four million, two hundred fifty-five thousand, three hundred forty-five".