123012244315309 has 4 divisors (see below), whose sum is σ = 123012268271200. Its totient is φ = 123012220359420.

The previous prime is 123012244315291. The next prime is 123012244315319. The reversal of 123012244315309 is 903513442210321.

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 a de Polignac number, because none of the positive numbers 2^k-123012244315309 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 (123012244315319) 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, 795759 + ... + 15705340.

It is an arithmetic number, because the mean of its divisors is an integer number (30753067067800).

Almost surely, 2^{123012244315309} is an apocalyptic number.

It is an amenable number.

123012244315309 is a deficient number, since it is larger than the sum of its proper divisors (23955891).

123012244315309 is an equidigital number, since it uses as much as digits as its factorization.

123012244315309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23955890.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 123012244315309 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty-four million, three hundred fifteen thousand, three hundred nine".