320487373903 has 2 divisors, whose sum is σ = 320487373904. Its totient is φ = 320487373902.

The previous prime is 320487373867. The next prime is 320487373909. The reversal of 320487373903 is 309373784023.

It is a strong prime.

It is an emirp because it is prime and its reverse (309373784023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320487373903 - 2³³ = 311897439311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320487373909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160243686951 + 160243686952.

It is an arithmetic number, because the mean of its divisors is an integer number (160243686952).

Almost surely, 2^320487373903 is an apocalyptic number.

320487373903 is a deficient number, since it is larger than the sum of its proper divisors (1).

320487373903 is an equidigital number, since it uses as much as digits as its factorization.

320487373903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 49.

The spelling of 320487373903 in words is "three hundred twenty billion, four hundred eighty-seven million, three hundred seventy-three thousand, nine hundred three".