12113312232 has 64 divisors (see below), whose sum is σ = 35083601280. Its totient is φ = 3413532672.

The previous prime is 12113312147. The next prime is 12113312249. The reversal of 12113312232 is 23221331121.

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a junction number, because it is equal to n+sod(n) for n = 12113312199 and 12113312208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481593 + ... + 506120.

It is an arithmetic number, because the mean of its divisors is an integer number (548181270).

Almost surely, 2^12113312232 is an apocalyptic number.

12113312232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12113312232 is an abundant number, since it is smaller than the sum of its proper divisors (22970289048).

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

12113312232 is a wasteful number, since it uses less digits than its factorization.

12113312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987802 (or 987798 counting only the distinct ones).

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

Adding to 12113312232 its reverse (23221331121), we get a palindrome (35334643353).

The spelling of 12113312232 in words is "twelve billion, one hundred thirteen million, three hundred twelve thousand, two hundred thirty-two".