123310233213231 has 32 divisors (see below), whose sum is σ = 170358369170688. Its totient is φ = 79274019202560.

The previous prime is 123310233213227. The next prime is 123310233213257. The reversal of 123310233213231 is 132312332013321.

It is not a de Polignac number, because 123310233213231 - 2² = 123310233213227 is a prime.

It is a super-2 number, since 2×123310233213231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123310233213031) 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, 337111020 + ... + 337476606.

It is an arithmetic number, because the mean of its divisors is an integer number (5323699036584).

Almost surely, 2^{123310233213231} is an apocalyptic number.

123310233213231 is a deficient number, since it is larger than the sum of its proper divisors (47048135957457).

123310233213231 is a wasteful number, since it uses less digits than its factorization.

123310233213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392631.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 123310233213231 its reverse (132312332013321), we get a palindrome (255622565226552).

The spelling of 123310233213231 in words is "one hundred twenty-three trillion, three hundred ten billion, two hundred thirty-three million, two hundred thirteen thousand, two hundred thirty-one".