123013240434311 has 4 divisors (see below), whose sum is σ = 123014574191352. Its totient is φ = 123011906677272.

The previous prime is 123013240434251. The next prime is 123013240434313. The reversal of 123013240434311 is 113434042310321.

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 123013240434311 - 2¹⁴ = 123013240417927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013240434313) 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, 666740165 + ... + 666924638.

It is an arithmetic number, because the mean of its divisors is an integer number (30753643547838).

Almost surely, 2^{123013240434311} is an apocalyptic number.

123013240434311 is a deficient number, since it is larger than the sum of its proper divisors (1333757041).

123013240434311 is an equidigital number, since it uses as much as digits as its factorization.

123013240434311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333757040.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 123013240434311 its reverse (113434042310321), we get a palindrome (236447282744632).

The spelling of 123013240434311 in words is "one hundred twenty-three trillion, thirteen billion, two hundred forty million, four hundred thirty-four thousand, three hundred eleven".