1317388303 has 16 divisors (see below), whose sum is σ = 1648728576. Its totient is φ = 1022617440.

The previous prime is 1317388243. The next prime is 1317388337. The reversal of 1317388303 is 3038837131.

It is a cyclic number.

It is not a de Polignac number, because 1317388303 - 2⁹ = 1317387791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317388393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12276 + ... + 52777.

It is an arithmetic number, because the mean of its divisors is an integer number (103045536).

Almost surely, 2^1317388303 is an apocalyptic number.

1317388303 is a deficient number, since it is larger than the sum of its proper divisors (331340273).

1317388303 is a wasteful number, since it uses less digits than its factorization.

1317388303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65334.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 1317388303 is about 36295.8441560463. The cubic root of 1317388303 is about 1096.2373655065.

It can be divided in two parts, 131738 and 8303, that added together give a palindrome (140041).

The spelling of 1317388303 in words is "one billion, three hundred seventeen million, three hundred eighty-eight thousand, three hundred three".