123302330031021 has 32 divisors (see below), whose sum is σ = 165107308262400. Its totient is φ = 81850166728704.

The previous prime is 123302330030947. The next prime is 123302330031059. The reversal of 123302330031021 is 120130033203321.

123302330031021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-123302330031021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123302330030982 and 123302330031000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123302330031121) 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, 5865105316 + ... + 5865126338.

It is an arithmetic number, because the mean of its divisors is an integer number (5159603383200).

Almost surely, 2^{123302330031021} is an apocalyptic number.

It is an amenable number.

123302330031021 is a deficient number, since it is larger than the sum of its proper divisors (41804978231379).

123302330031021 is a wasteful number, since it uses less digits than its factorization.

123302330031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29125.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123302330031021 its reverse (120130033203321), we get a palindrome (243432363234342).

The spelling of 123302330031021 in words is "one hundred twenty-three trillion, three hundred two billion, three hundred thirty million, thirty-one thousand, twenty-one".