13231223112 has 64 divisors (see below), whose sum is σ = 33417489600. Its totient is φ = 4365239040.

The previous prime is 13231223099. The next prime is 13231223149. The reversal of 13231223112 is 21132213231.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3103062 + ... + 3107322.

It is an arithmetic number, because the mean of its divisors is an integer number (522148275).

Almost surely, 2^13231223112 is an apocalyptic number.

13231223112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13231223112 is an abundant number, since it is smaller than the sum of its proper divisors (20186266488).

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

13231223112 is a wasteful number, since it uses less digits than its factorization.

13231223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5566 (or 5562 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 13231223112 its reverse (21132213231), we get a palindrome (34363436343).

The spelling of 13231223112 in words is "thirteen billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred twelve".