123021313232021 has 16 divisors (see below), whose sum is σ = 125078309250048. Its totient is φ = 120970961918400.

The previous prime is 123021313232011. The next prime is 123021313232029. The reversal of 123021313232021 is 120232313120321.

It is a cyclic number.

It is not a de Polignac number, because 123021313232021 - 2³⁴ = 123004133362837 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 (123021313232029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108768191 + ... + 109893411.

It is an arithmetic number, because the mean of its divisors is an integer number (7817394328128).

Almost surely, 2^{123021313232021} is an apocalyptic number.

It is an amenable number.

123021313232021 is a deficient number, since it is larger than the sum of its proper divisors (2056996018027).

123021313232021 is a wasteful number, since it uses less digits than its factorization.

123021313232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128172.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 123021313232021 its reverse (120232313120321), we get a palindrome (243253626352342).

The spelling of 123021313232021 in words is "one hundred twenty-three trillion, twenty-one billion, three hundred thirteen million, two hundred thirty-two thousand, twenty-one".