1317313303 has 2 divisors, whose sum is σ = 1317313304. Its totient is φ = 1317313302.

The previous prime is 1317313259. The next prime is 1317313363. The reversal of 1317313303 is 3033137131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1317313303 - 2²¹ = 1315216151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317313363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658656651 + 658656652.

It is an arithmetic number, because the mean of its divisors is an integer number (658656652).

Almost surely, 2^1317313303 is an apocalyptic number.

1317313303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317313303 is an equidigital number, since it uses as much as digits as its factorization.

1317313303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 25.

The square root of 1317313303 is about 36294.8109652055. The cubic root of 1317313303 is about 1096.2165618800.

The spelling of 1317313303 in words is "one billion, three hundred seventeen million, three hundred thirteen thousand, three hundred three".