12131320000 has 70 divisors (see below), whose sum is σ = 30081830108. Its totient is φ = 4852512000.

The previous prime is 12131319953. The next prime is 12131320009. The reversal of 12131320000 is 2313121.

It is not an unprimeable number, because it can be changed into a prime (12131320009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 111642 + ... + 191641.

Almost surely, 2^12131320000 is an apocalyptic number.

12131320000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131320000 is an abundant number, since it is smaller than the sum of its proper divisors (17950510108).

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

12131320000 is an frugal number, since it uses more digits than its factorization.

12131320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303315 (or 303290 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12131320000 its reverse (2313121), we get a palindrome (12133633121).

The spelling of 12131320000 in words is "twelve billion, one hundred thirty-one million, three hundred twenty thousand".