123310312330031 has 4 divisors (see below), whose sum is σ = 123314221638192. Its totient is φ = 123306403021872.

The previous prime is 123310312330021. The next prime is 123310312330111. The reversal of 123310312330031 is 130033213013321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123310312330031 - 2³⁴ = 123293132460847 is a prime.

It is a super-2 number, since 2×123310312330031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123310312330021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1954606766 + ... + 1954669851.

It is an arithmetic number, because the mean of its divisors is an integer number (30828555409548).

Almost surely, 2^{123310312330031} is an apocalyptic number.

123310312330031 is a deficient number, since it is larger than the sum of its proper divisors (3909308161).

123310312330031 is an equidigital number, since it uses as much as digits as its factorization.

123310312330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909308160.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 123310312330031 its reverse (130033213013321), we get a palindrome (253343525343352).

The spelling of 123310312330031 in words is "one hundred twenty-three trillion, three hundred ten billion, three hundred twelve million, three hundred thirty thousand, thirty-one".