123013333111213 has 4 divisors (see below), whose sum is σ = 123013821920220. Its totient is φ = 123012844302208.

The previous prime is 123013333111183. The next prime is 123013333111241. The reversal of 123013333111213 is 312111333310321.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 94156689612969 + 28856643498244 = 9703437^2 + 5371838^2 .

It is a cyclic number.

It is not a de Polignac number, because 123013333111213 - 2⁵ = 123013333111181 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 (123013333111013) 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, 244026820 + ... + 244530397.

It is an arithmetic number, because the mean of its divisors is an integer number (30753455480055).

Almost surely, 2^{123013333111213} is an apocalyptic number.

It is an amenable number.

123013333111213 is a deficient number, since it is larger than the sum of its proper divisors (488809007).

123013333111213 is an equidigital number, since it uses as much as digits as its factorization.

123013333111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488809006.

The product of its (nonzero) digits is 2916, while the sum is 28.

Adding to 123013333111213 its reverse (312111333310321), we get a palindrome (435124666421534).

The spelling of 123013333111213 in words is "one hundred twenty-three trillion, thirteen billion, three hundred thirty-three million, one hundred eleven thousand, two hundred thirteen".