320313421213 has 2 divisors, whose sum is σ = 320313421214. Its totient is φ = 320313421212.

The previous prime is 320313421199. The next prime is 320313421237. The reversal of 320313421213 is 312124313023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319973498244 + 339922969 = 565662^2 + 18437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320313421213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320313421013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160156710606 + 160156710607.

It is an arithmetic number, because the mean of its divisors is an integer number (160156710607).

Almost surely, 2^320313421213 is an apocalyptic number.

It is an amenable number.

320313421213 is a deficient number, since it is larger than the sum of its proper divisors (1).

320313421213 is an equidigital number, since it uses as much as digits as its factorization.

320313421213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 320313421213 its reverse (312124313023), we get a palindrome (632437734236).

The spelling of 320313421213 in words is "three hundred twenty billion, three hundred thirteen million, four hundred twenty-one thousand, two hundred thirteen".