318662373013 has 2 divisors, whose sum is σ = 318662373014. Its totient is φ = 318662373012.

The previous prime is 318662373011. The next prime is 318662373019. The reversal of 318662373013 is 310373266813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 314919625329 + 3742747684 = 561177^2 + 61178^2 .

It is a cyclic number.

It is not a de Polignac number, because 318662373013 - 2¹ = 318662373011 is a prime.

Together with 318662373011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318662373011) 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, 159331186506 + 159331186507.

It is an arithmetic number, because the mean of its divisors is an integer number (159331186507).

Almost surely, 2^318662373013 is an apocalyptic number.

It is an amenable number.

318662373013 is a deficient number, since it is larger than the sum of its proper divisors (1).

318662373013 is an equidigital number, since it uses as much as digits as its factorization.

318662373013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 318662373013 in words is "three hundred eighteen billion, six hundred sixty-two million, three hundred seventy-three thousand, thirteen".