320232202021 has 2 divisors, whose sum is σ = 320232202022. Its totient is φ = 320232202020.

The previous prime is 320232202009. The next prime is 320232202027. The reversal of 320232202021 is 120202232023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 257339085796 + 62893116225 = 507286^2 + 250785^2 .

It is a cyclic number.

It is not a de Polignac number, because 320232202021 - 2⁷ = 320232201893 is a prime.

It is a super-2 number, since 2×320232202021² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320232202021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320232202027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160116101010 + 160116101011.

It is an arithmetic number, because the mean of its divisors is an integer number (160116101011).

Almost surely, 2^320232202021 is an apocalyptic number.

It is an amenable number.

320232202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

320232202021 is an equidigital number, since it uses as much as digits as its factorization.

320232202021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 320232202021 its reverse (120202232023), we get a palindrome (440434434044).

The spelling of 320232202021 in words is "three hundred twenty billion, two hundred thirty-two million, two hundred two thousand, twenty-one".