317931703 has 2 divisors, whose sum is σ = 317931704. Its totient is φ = 317931702.

The previous prime is 317931697. The next prime is 317931721. The reversal of 317931703 is 307139713.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (307139713) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317931703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317931743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158965851 + 158965852.

It is an arithmetic number, because the mean of its divisors is an integer number (158965852).

Almost surely, 2^317931703 is an apocalyptic number.

317931703 is a deficient number, since it is larger than the sum of its proper divisors (1).

317931703 is an equidigital number, since it uses as much as digits as its factorization.

317931703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11907, while the sum is 34.

The square root of 317931703 is about 17830.6394445068. The cubic root of 317931703 is about 682.5135514133.

The spelling of 317931703 in words is "three hundred seventeen million, nine hundred thirty-one thousand, seven hundred three".