123313221112 has 8 divisors (see below), whose sum is σ = 231212289600. Its totient is φ = 61656610552.

The previous prime is 123313221107. The next prime is 123313221149. The reversal of 123313221112 is 211122313321.

123313221112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7707076312 + ... + 7707076327.

It is an arithmetic number, because the mean of its divisors is an integer number (28901536200).

Almost surely, 2^123313221112 is an apocalyptic number.

It is an amenable number.

123313221112 is a deficient number, since it is larger than the sum of its proper divisors (107899068488).

123313221112 is a wasteful number, since it uses less digits than its factorization.

123313221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15414152645 (or 15414152641 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

Adding to 123313221112 its reverse (211122313321), we get a palindrome (334435534433).

The spelling of 123313221112 in words is "one hundred twenty-three billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred twelve".