1312311313200 has 120 divisors (see below), whose sum is σ = 4204157045200. Its totient is φ = 349917511680.

The previous prime is 1312311313199. The next prime is 1312311313213. The reversal of 1312311313200 is 23131132131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14846736 + ... + 14934864.

Almost surely, 2^{1312311313200} is an apocalyptic number.

1312311313200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312311313200 is an abundant number, since it is smaller than the sum of its proper divisors (2891845732000).

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

1312311313200 is a wasteful number, since it uses less digits than its factorization.

1312311313200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100559 (or 100548 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1312311313200 its reverse (23131132131), we get a palindrome (1335442445331).

The spelling of 1312311313200 in words is "one trillion, three hundred twelve billion, three hundred eleven million, three hundred thirteen thousand, two hundred".