320133223021 has 2 divisors, whose sum is σ = 320133223022. Its totient is φ = 320133223020.

The previous prime is 320133223013. The next prime is 320133223049. The reversal of 320133223021 is 120322331023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259783896100 + 60349326921 = 509690^2 + 245661^2 .

It is a cyclic number.

It is not a de Polignac number, because 320133223021 - 2³ = 320133223013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320133222983 and 320133223001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320133223061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160066611510 + 160066611511.

It is an arithmetic number, because the mean of its divisors is an integer number (160066611511).

Almost surely, 2^320133223021 is an apocalyptic number.

It is an amenable number.

320133223021 is a deficient number, since it is larger than the sum of its proper divisors (1).

320133223021 is an equidigital number, since it uses as much as digits as its factorization.

320133223021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 320133223021 its reverse (120322331023), we get a palindrome (440455554044).

The spelling of 320133223021 in words is "three hundred twenty billion, one hundred thirty-three million, two hundred twenty-three thousand, twenty-one".