123321013113012 has 96 divisors (see below), whose sum is σ = 338232084632064. Its totient is φ = 34477298544000.

The previous prime is 123321013112989. The next prime is 123321013113029. The reversal of 123321013113012 is 210311310123321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15570114 + ... + 22114937.

It is an arithmetic number, because the mean of its divisors is an integer number (3523250881584).

Almost surely, 2^{123321013113012} is an apocalyptic number.

123321013113012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123321013113012 is an abundant number, since it is smaller than the sum of its proper divisors (214911071519052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123321013113012 is a wasteful number, since it uses less digits than its factorization.

123321013113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37686989 (or 37686987 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 123321013113012 its reverse (210311310123321), we get a palindrome (333632323236333).

The spelling of 123321013113012 in words is "one hundred twenty-three trillion, three hundred twenty-one billion, thirteen million, one hundred thirteen thousand, twelve".