123123220010331 has 16 divisors (see below), whose sum is σ = 164994920361600. Its totient is φ = 81667576793088.

The previous prime is 123123220010303. The next prime is 123123220010339. The reversal of 123123220010331 is 133010022321321.

It is not a de Polignac number, because 123123220010331 - 2¹⁸ = 123123219748187 is a prime.

It is a super-2 number, since 2×123123220010331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123123220010339) 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, 92290501 + ... + 93615078.

It is an arithmetic number, because the mean of its divisors is an integer number (10312182522600).

Almost surely, 2^{123123220010331} is an apocalyptic number.

123123220010331 is a deficient number, since it is larger than the sum of its proper divisors (41871700351269).

123123220010331 is a wasteful number, since it uses less digits than its factorization.

123123220010331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185906698.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123123220010331 its reverse (133010022321321), we get a palindrome (256133242331652).

The spelling of 123123220010331 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred twenty million, ten thousand, three hundred thirty-one".