123013240415231 has 4 divisors (see below), whose sum is σ = 123700465222200. Its totient is φ = 122326015608264.

The previous prime is 123013240415201. The next prime is 123013240415267. The reversal of 123013240415231 is 132514042310321.

It is a happy number.

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 123013240415231 - 2¹⁸ = 123013240153087 is a prime.

It is a super-2 number, since 2×123013240415231² (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 (123013240415201) 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, 343612403216 + ... + 343612403573.

It is an arithmetic number, because the mean of its divisors is an integer number (30925116305550).

Almost surely, 2^{123013240415231} is an apocalyptic number.

123013240415231 is a deficient number, since it is larger than the sum of its proper divisors (687224806969).

123013240415231 is an equidigital number, since it uses as much as digits as its factorization.

123013240415231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687224806968.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 123013240415231 its reverse (132514042310321), we get a palindrome (255527282725552).

The spelling of 123013240415231 in words is "one hundred twenty-three trillion, thirteen billion, two hundred forty million, four hundred fifteen thousand, two hundred thirty-one".