1317056303 has 8 divisors (see below), whose sum is σ = 1325182320. Its totient is φ = 1308948480.

The previous prime is 1317056287. The next prime is 1317056339. The reversal of 1317056303 is 3036507131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1317056303 - 2⁴ = 1317056287 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 (1317056393) 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, 158201 + ... + 166317.

It is an arithmetic number, because the mean of its divisors is an integer number (165647790).

Almost surely, 2^1317056303 is an apocalyptic number.

1317056303 is a deficient number, since it is larger than the sum of its proper divisors (8126017).

1317056303 is an equidigital number, since it uses as much as digits as its factorization.

1317056303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097.

The product of its (nonzero) digits is 5670, while the sum is 29.

The square root of 1317056303 is about 36291.2703415022. The cubic root of 1317056303 is about 1096.1452687971.

The spelling of 1317056303 in words is "one billion, three hundred seventeen million, fifty-six thousand, three hundred three".