1311734765315 has 32 divisors (see below), whose sum is σ = 1700342461440. Its totient is φ = 965708562816.

The previous prime is 1311734765287. The next prime is 1311734765339. The reversal of 1311734765315 is 5135674371131.

It is a cyclic number.

It is not a de Polignac number, because 1311734765315 - 2²⁶ = 1311667656451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1311734765315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158743874 + ... + 158752136.

It is an arithmetic number, because the mean of its divisors is an integer number (53135701920).

Almost surely, 2^{1311734765315} is an apocalyptic number.

1311734765315 is a deficient number, since it is larger than the sum of its proper divisors (388607696125).

1311734765315 is a wasteful number, since it uses less digits than its factorization.

1311734765315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15443.

The product of its digits is 793800, while the sum is 47.

The spelling of 1311734765315 in words is "one trillion, three hundred eleven billion, seven hundred thirty-four million, seven hundred sixty-five thousand, three hundred fifteen".