12232131320 has 16 divisors (see below), whose sum is σ = 27522295560. Its totient is φ = 4892852512.

The previous prime is 12232131319. The next prime is 12232131383. The reversal of 12232131320 is 2313123221.

12232131320 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 12232131292 and 12232131301.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 152901602 + ... + 152901681.

Almost surely, 2^12232131320 is an apocalyptic number.

12232131320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12232131320 is an abundant number, since it is smaller than the sum of its proper divisors (15290164240).

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

12232131320 is a wasteful number, since it uses less digits than its factorization.

12232131320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305803294 (or 305803290 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12232131320 its reverse (2313123221), we get a palindrome (14545254541).

The spelling of 12232131320 in words is "twelve billion, two hundred thirty-two million, one hundred thirty-one thousand, three hundred twenty".