318320511583 has 2 divisors, whose sum is σ = 318320511584. Its totient is φ = 318320511582.

The previous prime is 318320511571. The next prime is 318320511653. The reversal of 318320511583 is 385115023813.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-318320511583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318320521583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159160255791 + 159160255792.

It is an arithmetic number, because the mean of its divisors is an integer number (159160255792).

Almost surely, 2^318320511583 is an apocalyptic number.

318320511583 is a deficient number, since it is larger than the sum of its proper divisors (1).

318320511583 is an equidigital number, since it uses as much as digits as its factorization.

318320511583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 318320511583 in words is "three hundred eighteen billion, three hundred twenty million, five hundred eleven thousand, five hundred eighty-three".