123012202323505 has 64 divisors (see below), whose sum is σ = 162641444749056. Its totient is φ = 88572331008000.

The previous prime is 123012202323481. The next prime is 123012202323533. The reversal of 123012202323505 is 505323202210321.

It is not a de Polignac number, because 123012202323505 - 2⁵ = 123012202323473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36929509690 + ... + 36929513020.

It is an arithmetic number, because the mean of its divisors is an integer number (2541272574204).

Almost surely, 2^{123012202323505} is an apocalyptic number.

It is an amenable number.

123012202323505 is a deficient number, since it is larger than the sum of its proper divisors (39629242425551).

123012202323505 is a wasteful number, since it uses less digits than its factorization.

123012202323505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8338.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 123012202323505 its reverse (505323202210321), we get a palindrome (628335404533826).

The spelling of 123012202323505 in words is "one hundred twenty-three trillion, twelve billion, two hundred two million, three hundred twenty-three thousand, five hundred five".