318671657203 has 2 divisors, whose sum is σ = 318671657204. Its totient is φ = 318671657202.

The previous prime is 318671657141. The next prime is 318671657221. The reversal of 318671657203 is 302756176813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318671657203 - 2²⁵ = 318638102771 is a prime.

It is not a weakly prime, because it can be changed into another prime (318671657803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159335828601 + 159335828602.

It is an arithmetic number, because the mean of its divisors is an integer number (159335828602).

Almost surely, 2^318671657203 is an apocalyptic number.

318671657203 is a deficient number, since it is larger than the sum of its proper divisors (1).

318671657203 is an equidigital number, since it uses as much as digits as its factorization.

318671657203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 318671657203 in words is "three hundred eighteen billion, six hundred seventy-one million, six hundred fifty-seven thousand, two hundred three".