316243303 has 2 divisors, whose sum is σ = 316243304. Its totient is φ = 316243302.

The previous prime is 316243273. The next prime is 316243331. The reversal of 316243303 is 303342613.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316243303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316240303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158121651 + 158121652.

It is an arithmetic number, because the mean of its divisors is an integer number (158121652).

Almost surely, 2^316243303 is an apocalyptic number.

316243303 is a deficient number, since it is larger than the sum of its proper divisors (1).

316243303 is an equidigital number, since it uses as much as digits as its factorization.

316243303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 316243303 is about 17783.2309494085. The cubic root of 316243303 is about 681.3032266804.

Adding to 316243303 its reverse (303342613), we get a palindrome (619585916).

The spelling of 316243303 in words is "three hundred sixteen million, two hundred forty-three thousand, three hundred three".