1311201313112 has 128 divisors (see below), whose sum is σ = 2715329433600. Its totient is φ = 591500236800.

The previous prime is 1311201313087. The next prime is 1311201313139. The reversal of 1311201313112 is 2113131021131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333721964 + ... + 333725892.

It is an arithmetic number, because the mean of its divisors is an integer number (21213511200).

Almost surely, 2^{1311201313112} is an apocalyptic number.

It is an amenable number.

1311201313112 is an abundant number, since it is smaller than the sum of its proper divisors (1404128120488).

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

1311201313112 is a wasteful number, since it uses less digits than its factorization.

1311201313112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5457 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1311201313112 its reverse (2113131021131), we get a palindrome (3424332334243).

The spelling of 1311201313112 in words is "one trillion, three hundred eleven billion, two hundred one million, three hundred thirteen thousand, one hundred twelve".