12131322300 has 108 divisors (see below), whose sum is σ = 38298911560. Its totient is φ = 3211712640.

The previous prime is 12131322299. The next prime is 12131322323. The reversal of 12131322300 is 322313121.

12131322300 is a `hidden beast` number, since 12 + 1 + 31 + 322 + 300 = 666.

12131322300 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 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 35 ways as a sum of consecutive naturals, for example, 76614 + ... + 173586.

Almost surely, 2^12131322300 is an apocalyptic number.

12131322300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12131322300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19149455780).

12131322300 is an abundant number, since it is smaller than the sum of its proper divisors (26167589260).

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

12131322300 is a wasteful number, since it uses less digits than its factorization.

12131322300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97132 (or 97122 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12131322300 its reverse (322313121), we get a palindrome (12453635421).

The spelling of 12131322300 in words is "twelve billion, one hundred thirty-one million, three hundred twenty-two thousand, three hundred".