123524655205013 has 4 divisors (see below), whose sum is σ = 123609319123680. Its totient is φ = 123439991286348.

The previous prime is 123524655204961. The next prime is 123524655205019. The reversal of 123524655205013 is 310502556425321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123524655205013 - 2²⁴ = 123524638427797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123524655205019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42331957145 + ... + 42331960062.

It is an arithmetic number, because the mean of its divisors is an integer number (30902329780920).

Almost surely, 2^{123524655205013} is an apocalyptic number.

It is an amenable number.

123524655205013 is a deficient number, since it is larger than the sum of its proper divisors (84663918667).

123524655205013 is an equidigital number, since it uses as much as digits as its factorization.

123524655205013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84663918666.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 123524655205013 in words is "one hundred twenty-three trillion, five hundred twenty-four billion, six hundred fifty-five million, two hundred five thousand, thirteen".