318880401523 has 2 divisors, whose sum is σ = 318880401524. Its totient is φ = 318880401522.

The previous prime is 318880401517. The next prime is 318880401563. The reversal of 318880401523 is 325104088813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 318880401523 - 2⁹ = 318880401011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 318880401523.

It is not a weakly prime, because it can be changed into another prime (318880401563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159440200761 + 159440200762.

It is an arithmetic number, because the mean of its divisors is an integer number (159440200762).

Almost surely, 2^318880401523 is an apocalyptic number.

318880401523 is a deficient number, since it is larger than the sum of its proper divisors (1).

318880401523 is an equidigital number, since it uses as much as digits as its factorization.

318880401523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 43.

The spelling of 318880401523 in words is "three hundred eighteen billion, eight hundred eighty million, four hundred one thousand, five hundred twenty-three".