320021322113201 has 2 divisors, whose sum is σ = 320021322113202. Its totient is φ = 320021322113200.

The previous prime is 320021322113197. The next prime is 320021322113263. The reversal of 320021322113201 is 102311223120023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289092997480225 + 30928324632976 = 17002735^2 + 5561324^2 .

It is a cyclic number.

It is not a de Polignac number, because 320021322113201 - 2² = 320021322113197 is a prime.

It is not a weakly prime, because it can be changed into another prime (320021322113501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160010661056600 + 160010661056601.

It is an arithmetic number, because the mean of its divisors is an integer number (160010661056601).

Almost surely, 2^{320021322113201} is an apocalyptic number.

It is an amenable number.

320021322113201 is a deficient number, since it is larger than the sum of its proper divisors (1).

320021322113201 is an equidigital number, since it uses as much as digits as its factorization.

320021322113201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 320021322113201 its reverse (102311223120023), we get a palindrome (422332545233224).

The spelling of 320021322113201 in words is "three hundred twenty trillion, twenty-one billion, three hundred twenty-two million, one hundred thirteen thousand, two hundred one".