1317113158685 has 16 divisors (see below), whose sum is σ = 1597752234624. Its totient is φ = 1042236891072.

The previous prime is 1317113158681. The next prime is 1317113158703. The reversal of 1317113158685 is 5868513117131.

It is a cyclic number.

It is not a de Polignac number, because 1317113158685 - 2² = 1317113158681 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317113158681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1059827 + ... + 1938416.

It is an arithmetic number, because the mean of its divisors is an integer number (99859514664).

Almost surely, 2^{1317113158685} is an apocalyptic number.

It is an amenable number.

1317113158685 is a deficient number, since it is larger than the sum of its proper divisors (280639075939).

1317113158685 is a wasteful number, since it uses less digits than its factorization.

1317113158685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999204.

The product of its digits is 604800, while the sum is 50.

The spelling of 1317113158685 in words is "one trillion, three hundred seventeen billion, one hundred thirteen million, one hundred fifty-eight thousand, six hundred eighty-five".