123210311111113 has 4 divisors (see below), whose sum is σ = 123288939262720. Its totient is φ = 123131682959508.

The previous prime is 123210311111101. The next prime is 123210311111123. The reversal of 123210311111113 is 311111113012321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123210311111113 - 2¹⁷ = 123210310980041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123210311111123) 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, 39314073453 + ... + 39314076586.

It is an arithmetic number, because the mean of its divisors is an integer number (30822234815680).

Almost surely, 2^{123210311111113} is an apocalyptic number.

It is an amenable number.

123210311111113 is a deficient number, since it is larger than the sum of its proper divisors (78628151607).

123210311111113 is an equidigital number, since it uses as much as digits as its factorization.

123210311111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78628151606.

The product of its (nonzero) digits is 108, while the sum is 22.

Adding to 123210311111113 its reverse (311111113012321), we get a palindrome (434321424123434).

The spelling of 123210311111113 in words is "one hundred twenty-three trillion, two hundred ten billion, three hundred eleven million, one hundred eleven thousand, one hundred thirteen".