1312100113200 has 180 divisors, whose sum is σ = 4464879612600. Its totient is φ = 329311313920.

The previous prime is 1312100113157. The next prime is 1312100113201. The reversal of 1312100113200 is 23110012131.

It is a happy number.

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 1312100113200.

It is not an unprimeable number, because it can be changed into a prime (1312100113201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1544925 + ... + 2238524.

Almost surely, 2^{1312100113200} is an apocalyptic number.

1312100113200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312100113200 is an abundant number, since it is smaller than the sum of its proper divisors (3152779499400).

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

1312100113200 is a wasteful number, since it uses less digits than its factorization.

1312100113200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3783504 (or 3783476 counting only the distinct ones).

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

Adding to 1312100113200 its reverse (23110012131), we get a palindrome (1335210125331).

The spelling of 1312100113200 in words is "one trillion, three hundred twelve billion, one hundred million, one hundred thirteen thousand, two hundred".