322020312161 has 2 divisors, whose sum is σ = 322020312162. Its totient is φ = 322020312160.

The previous prime is 322020312121. The next prime is 322020312179. The reversal of 322020312161 is 161213020223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170655741025 + 151364571136 = 413105^2 + 389056^2 .

It is an emirp because it is prime and its reverse (161213020223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 322020312161 - 2¹⁴ = 322020295777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (322020312121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161010156080 + 161010156081.

It is an arithmetic number, because the mean of its divisors is an integer number (161010156081).

Almost surely, 2^322020312161 is an apocalyptic number.

It is an amenable number.

322020312161 is a deficient number, since it is larger than the sum of its proper divisors (1).

322020312161 is an equidigital number, since it uses as much as digits as its factorization.

322020312161 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 322020312161 its reverse (161213020223), we get a palindrome (483233332384).

The spelling of 322020312161 in words is "three hundred twenty-two billion, twenty million, three hundred twelve thousand, one hundred sixty-one".