318890023 has 2 divisors, whose sum is σ = 318890024. Its totient is φ = 318890022.

The previous prime is 318890017. The next prime is 318890041. The reversal of 318890023 is 320098813.

It is a weak prime.

It is an emirp because it is prime and its reverse (320098813) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318890023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318890083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159445011 + 159445012.

It is an arithmetic number, because the mean of its divisors is an integer number (159445012).

Almost surely, 2^318890023 is an apocalyptic number.

318890023 is a deficient number, since it is larger than the sum of its proper divisors (1).

318890023 is an equidigital number, since it uses as much as digits as its factorization.

318890023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 318890023 is about 17857.4920691569. The cubic root of 318890023 is about 683.1986150180.

The spelling of 318890023 in words is "three hundred eighteen million, eight hundred ninety thousand, twenty-three".