12231131112 has 32 divisors (see below), whose sum is σ = 33975364800. Its totient is φ = 4077043632.

The previous prime is 12231131063. The next prime is 12231131131. The reversal of 12231131112 is 21113113221.

12231131112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28312588 + ... + 28313019.

It is an arithmetic number, because the mean of its divisors is an integer number (1061730150).

Almost surely, 2^12231131112 is an apocalyptic number.

12231131112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12231131112 is an abundant number, since it is smaller than the sum of its proper divisors (21744233688).

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

12231131112 is a wasteful number, since it uses less digits than its factorization.

12231131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56625622 (or 56625612 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 12231131112 its reverse (21113113221), we get a palindrome (33344244333).

The spelling of 12231131112 in words is "twelve billion, two hundred thirty-one million, one hundred thirty-one thousand, one hundred twelve".