1311394099800 has 192 divisors, whose sum is σ = 4452888880800. Its totient is φ = 317784678400.

The previous prime is 1311394099789. The next prime is 1311394099831. The reversal of 1311394099800 is 89904931131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311394099800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1920891 + ... + 2512490.

Almost surely, 2^{1311394099800} is an apocalyptic number.

1311394099800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311394099800 is an abundant number, since it is smaller than the sum of its proper divisors (3141494781000).

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

1311394099800 is a wasteful number, since it uses less digits than its factorization.

1311394099800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433446 (or 4433437 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The spelling of 1311394099800 in words is "one trillion, three hundred eleven billion, three hundred ninety-four million, ninety-nine thousand, eight hundred".