320013300332161 has 2 divisors, whose sum is σ = 320013300332162. Its totient is φ = 320013300332160.

The previous prime is 320013300332119. The next prime is 320013300332249. The reversal of 320013300332161 is 161233003310023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255547560081025 + 64465740251136 = 15985855^2 + 8029056^2 .

It is an emirp because it is prime and its reverse (161233003310023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320013300332161 - 2³³ = 320004710397569 is a prime.

It is not a weakly prime, because it can be changed into another prime (320013300332261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160006650166080 + 160006650166081.

It is an arithmetic number, because the mean of its divisors is an integer number (160006650166081).

Almost surely, 2^{320013300332161} is an apocalyptic number.

It is an amenable number.

320013300332161 is a deficient number, since it is larger than the sum of its proper divisors (1).

320013300332161 is an equidigital number, since it uses as much as digits as its factorization.

320013300332161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 320013300332161 its reverse (161233003310023), we get a palindrome (481246303642184).

The spelling of 320013300332161 in words is "three hundred twenty trillion, thirteen billion, three hundred million, three hundred thirty-two thousand, one hundred sixty-one".