123330312112 has 40 divisors (see below), whose sum is σ = 273681045792. Its totient is φ = 52741171200.

The previous prime is 123330312059. The next prime is 123330312181. The reversal of 123330312112 is 211213033321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142689 + ... + 1245952.

Almost surely, 2^123330312112 is an apocalyptic number.

It is an amenable number.

123330312112 is an abundant number, since it is smaller than the sum of its proper divisors (150350733680).

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

123330312112 is a wasteful number, since it uses less digits than its factorization.

123330312112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389117 (or 2389111 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123330312112 its reverse (211213033321), we get a palindrome (334543345433).

The spelling of 123330312112 in words is "one hundred twenty-three billion, three hundred thirty million, three hundred twelve thousand, one hundred twelve".