320313421013 has 2 divisors, whose sum is σ = 320313421014. Its totient is φ = 320313421012.

The previous prime is 320313421003. The next prime is 320313421069. The reversal of 320313421013 is 310124313023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 303206612164 + 17106808849 = 550642^2 + 130793^2 .

It is a cyclic number.

It is not a de Polignac number, because 320313421013 - 2¹⁰ = 320313419989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320313421013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320313421003) 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, 160156710506 + 160156710507.

It is an arithmetic number, because the mean of its divisors is an integer number (160156710507).

Almost surely, 2^320313421013 is an apocalyptic number.

It is an amenable number.

320313421013 is a deficient number, since it is larger than the sum of its proper divisors (1).

320313421013 is an equidigital number, since it uses as much as digits as its factorization.

320313421013 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 23.

Adding to 320313421013 its reverse (310124313023), we get a palindrome (630437734036).

The spelling of 320313421013 in words is "three hundred twenty billion, three hundred thirteen million, four hundred twenty-one thousand, thirteen".