123203232320121 has 32 divisors (see below), whose sum is σ = 187682494243200. Its totient is φ = 79819209604800.

The previous prime is 123203232320099. The next prime is 123203232320143. The reversal of 123203232320121 is 121023232302321.

123203232320121 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 0 + 323 + 2 + 320 + 12 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (123203232320099) and next prime (123203232320143).

It is not a de Polignac number, because 123203232320121 - 2³⁵ = 123168872581753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (123203232320621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73554555 + ... + 75210896.

It is an arithmetic number, because the mean of its divisors is an integer number (5865077945100).

Almost surely, 2^{123203232320121} is an apocalyptic number.

It is an amenable number.

123203232320121 is a deficient number, since it is larger than the sum of its proper divisors (64479261923079).

123203232320121 is a wasteful number, since it uses less digits than its factorization.

123203232320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148766326 (or 148766320 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 123203232320121 its reverse (121023232302321), we get a palindrome (244226464622442).

The spelling of 123203232320121 in words is "one hundred twenty-three trillion, two hundred three billion, two hundred thirty-two million, three hundred twenty thousand, one hundred twenty-one".