1313807511128 has 32 divisors (see below), whose sum is σ = 2821833884160. Its totient is φ = 561753947040.

The previous prime is 1313807511127. The next prime is 1313807511151. The reversal of 1313807511128 is 8211157083131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313807511127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27192626 + ... + 27240897.

It is an arithmetic number, because the mean of its divisors is an integer number (88182308880).

Almost surely, 2^{1313807511128} is an apocalyptic number.

It is an amenable number.

1313807511128 is an abundant number, since it is smaller than the sum of its proper divisors (1508026373032).

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

1313807511128 is a wasteful number, since it uses less digits than its factorization.

1313807511128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54433967 (or 54433963 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 41.

The spelling of 1313807511128 in words is "one trillion, three hundred thirteen billion, eight hundred seven million, five hundred eleven thousand, one hundred twenty-eight".