1317311 has 4 divisors (see below), whose sum is σ = 1352952. Its totient is φ = 1281672.

The previous prime is 1317307. The next prime is 1317317. The reversal of 1317311 is 1137131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1317311 - 2² = 1317307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1317311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17765 + ... + 17838.

It is an arithmetic number, because the mean of its divisors is an integer number (338238).

2^1317311 is an apocalyptic number.

1317311 is a deficient number, since it is larger than the sum of its proper divisors (35641).

1317311 is an equidigital number, since it uses as much as digits as its factorization.

1317311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35640.

The product of its digits is 63, while the sum is 17.

The square root of 1317311 is about 1147.7416956790. The cubic root of 1317311 is about 109.6215923057.

The spelling of 1317311 in words is "one million, three hundred seventeen thousand, three hundred eleven".