1311718775 has 12 divisors (see below), whose sum is σ = 1629859224. Its totient is φ = 1047228000.

The previous prime is 1311718769. The next prime is 1311718843. The reversal of 1311718775 is 5778171131.

It is not a de Polignac number, because 1311718775 - 2⁶ = 1311718711 is a prime.

It is a super-2 number, since 2×1311718775² = 3441212289375001250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41156 + ... + 65705.

It is an arithmetic number, because the mean of its divisors is an integer number (135821602).

Almost surely, 2^1311718775 is an apocalyptic number.

1311718775 is a deficient number, since it is larger than the sum of its proper divisors (318140449).

1311718775 is a wasteful number, since it uses less digits than its factorization.

1311718775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107362 (or 107357 counting only the distinct ones).

The product of its digits is 41160, while the sum is 41.

The square root of 1311718775 is about 36217.6583312616. The cubic root of 1311718775 is about 1094.6625107567.

The spelling of 1311718775 in words is "one billion, three hundred eleven million, seven hundred eighteen thousand, seven hundred seventy-five".