320405139022259 has 2 divisors, whose sum is σ = 320405139022260. Its totient is φ = 320405139022258.

The previous prime is 320405139022237. The next prime is 320405139022271. The reversal of 320405139022259 is 952220931504023.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (952220931504023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320405139022259 - 2⁴⁰ = 319305627394483 is a prime.

It is a super-2 number, since 2×320405139022259² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320405139022219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160202569511129 + 160202569511130.

It is an arithmetic number, because the mean of its divisors is an integer number (160202569511130).

Almost surely, 2^{320405139022259} is an apocalyptic number.

320405139022259 is a deficient number, since it is larger than the sum of its proper divisors (1).

320405139022259 is an equidigital number, since it uses as much as digits as its factorization.

320405139022259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 320405139022259 in words is "three hundred twenty trillion, four hundred five billion, one hundred thirty-nine million, twenty-two thousand, two hundred fifty-nine".