123312111112012 has 6 divisors (see below), whose sum is σ = 215796194446028. Its totient is φ = 61656055556004.

The previous prime is 123312111112009. The next prime is 123312111112031. The reversal of 123312111112012 is 210211111213321.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15414013888998 + ... + 15414013889005.

Almost surely, 2^{123312111112012} is an apocalyptic number.

It is an amenable number.

123312111112012 is a deficient number, since it is larger than the sum of its proper divisors (92484083334016).

123312111112012 is a wasteful number, since it uses less digits than its factorization.

123312111112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30828027778007 (or 30828027778005 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 123312111112012 its reverse (210211111213321), we get a palindrome (333523222325333).

The spelling of 123312111112012 in words is "one hundred twenty-three trillion, three hundred twelve billion, one hundred eleven million, one hundred twelve thousand, twelve".