123123231312002 has 4 divisors (see below), whose sum is σ = 184684846968006. Its totient is φ = 61561615656000.

The previous prime is 123123231311987. The next prime is 123123231312023. The reversal of 123123231312002 is 200213132321321.

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

It can be written as a sum of positive squares in only one way, i.e., 120888023918281 + 2235207393721 = 10994909^2 + 1495061^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30780807827999 + ... + 30780807828002.

Almost surely, 2^{123123231312002} is an apocalyptic number.

123123231312002 is a deficient number, since it is larger than the sum of its proper divisors (61561615656004).

123123231312002 is an equidigital number, since it uses as much as digits as its factorization.

123123231312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61561615656003.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 123123231312002 its reverse (200213132321321), we get a palindrome (323336363633323).

The spelling of 123123231312002 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred thirty-one million, three hundred twelve thousand, two".