123123201322112 has 32 divisors (see below), whose sum is σ = 245422536009420. Its totient is φ = 61526956990464.

The previous prime is 123123201321973. The next prime is 123123201322159. The reversal of 123123201322112 is 211223102321321.

It can be written as a sum of positive squares in 2 ways, for example, as 114725863752256 + 8397337569856 = 10711016^2 + 2897816^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270425333 + ... + 270880244.

Almost surely, 2^{123123201322112} is an apocalyptic number.

It is an amenable number.

123123201322112 is a deficient number, since it is larger than the sum of its proper divisors (122299334687308).

123123201322112 is an equidigital number, since it uses as much as digits as its factorization.

123123201322112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541307368 (or 541307356 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 123123201322112 its reverse (211223102321321), we get a palindrome (334346303643433).

The spelling of 123123201322112 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, two hundred one million, three hundred twenty-two thousand, one hundred twelve".