123313255502121 has 12 divisors (see below), whose sum is σ = 178120391428980. Its totient is φ = 82208262574080.

The previous prime is 123313255502093. The next prime is 123313255502159. The reversal of 123313255502121 is 121205552313321.

123313255502121 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 1 + 3 + 25 + 5 + 502 + 121 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 112859602131600 + 10453653370521 = 10623540^2 + 3233211^2 .

It is not a de Polignac number, because 123313255502121 - 2¹⁷ = 123313255371049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123313255502221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46507320 + ... + 49087241.

It is an arithmetic number, because the mean of its divisors is an integer number (14843365952415).

Almost surely, 2^{123313255502121} is an apocalyptic number.

It is an amenable number.

123313255502121 is a deficient number, since it is larger than the sum of its proper divisors (54807135926859).

123313255502121 is a wasteful number, since it uses less digits than its factorization.

123313255502121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95737896 (or 95737893 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 123313255502121 in words is "one hundred twenty-three trillion, three hundred thirteen billion, two hundred fifty-five million, five hundred two thousand, one hundred twenty-one".