12131311200 has 72 divisors (see below), whose sum is σ = 39487425768. Its totient is φ = 3235015680.

The previous prime is 12131311193. The next prime is 12131311201. The reversal of 12131311200 is 211313121.

It is a happy number.

It is a super-2 number, since 2×12131311200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12131311200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131311201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2524957 + ... + 2529756.

It is an arithmetic number, because the mean of its divisors is an integer number (548436469).

Almost surely, 2^12131311200 is an apocalyptic number.

12131311200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131311200 is an abundant number, since it is smaller than the sum of its proper divisors (27356114568).

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

12131311200 is a wasteful number, since it uses less digits than its factorization.

12131311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5054736 (or 5054723 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12131311200 its reverse (211313121), we get a palindrome (12342624321).

The spelling of 12131311200 in words is "twelve billion, one hundred thirty-one million, three hundred eleven thousand, two hundred".