123052320435021 has 16 divisors (see below), whose sum is σ = 165161882802048. Its totient is φ = 81488855808000.

The previous prime is 123052320435013. The next prime is 123052320435041. The reversal of 123052320435021 is 120534023250321.

It is not a de Polignac number, because 123052320435021 - 2³ = 123052320435013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123052320435041) 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, 8918065 + ... + 18045401.

It is an arithmetic number, because the mean of its divisors is an integer number (10322617675128).

Almost surely, 2^{123052320435021} is an apocalyptic number.

It is an amenable number.

123052320435021 is a deficient number, since it is larger than the sum of its proper divisors (42109562367027).

123052320435021 is a wasteful number, since it uses less digits than its factorization.

123052320435021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9157252.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 123052320435021 its reverse (120534023250321), we get a palindrome (243586343685342).

The spelling of 123052320435021 in words is "one hundred twenty-three trillion, fifty-two billion, three hundred twenty million, four hundred thirty-five thousand, twenty-one".