320223331313 has 2 divisors, whose sum is σ = 320223331314. Its totient is φ = 320223331312.

The previous prime is 320223331289. The next prime is 320223331357. The reversal of 320223331313 is 313133322023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320188485904 + 34845409 = 565852^2 + 5903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320223331313 is a prime.

It is not a weakly prime, because it can be changed into another prime (320223331513) 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, 160111665656 + 160111665657.

It is an arithmetic number, because the mean of its divisors is an integer number (160111665657).

Almost surely, 2^320223331313 is an apocalyptic number.

It is an amenable number.

320223331313 is a deficient number, since it is larger than the sum of its proper divisors (1).

320223331313 is an equidigital number, since it uses as much as digits as its factorization.

320223331313 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 26.

Adding to 320223331313 its reverse (313133322023), we get a palindrome (633356653336).

The spelling of 320223331313 in words is "three hundred twenty billion, two hundred twenty-three million, three hundred thirty-one thousand, three hundred thirteen".