320330112313 has 2 divisors, whose sum is σ = 320330112314. Its totient is φ = 320330112312.

The previous prime is 320330112307. The next prime is 320330112331. The reversal of 320330112313 is 313211033023.

Together with next prime (320330112331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254769534009 + 65560578304 = 504747^2 + 256048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320330112313 is a prime.

It is a super-2 number, since 2×320330112313² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320330112353) 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, 160165056156 + 160165056157.

It is an arithmetic number, because the mean of its divisors is an integer number (160165056157).

Almost surely, 2^320330112313 is an apocalyptic number.

It is an amenable number.

320330112313 is a deficient number, since it is larger than the sum of its proper divisors (1).

320330112313 is an equidigital number, since it uses as much as digits as its factorization.

320330112313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 320330112313 its reverse (313211033023), we get a palindrome (633541145336).

The spelling of 320330112313 in words is "three hundred twenty billion, three hundred thirty million, one hundred twelve thousand, three hundred thirteen".