123312232112 has 40 divisors (see below), whose sum is σ = 239599620000. Its totient is φ = 61480251392.

The previous prime is 123312232091. The next prime is 123312232123. The reversal of 123312232112 is 211232213321.

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, 13997213 + ... + 14006019.

It is an arithmetic number, because the mean of its divisors is an integer number (5989990500).

Almost surely, 2^123312232112 is an apocalyptic number.

It is an amenable number.

123312232112 is a deficient number, since it is larger than the sum of its proper divisors (116287387888).

123312232112 is a wasteful number, since it uses less digits than its factorization.

123312232112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11213 (or 11207 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 123312232112 its reverse (211232213321), we get a palindrome (334544445433).

The spelling of 123312232112 in words is "one hundred twenty-three billion, three hundred twelve million, two hundred thirty-two thousand, one hundred twelve".