20320000313 has 2 divisors, whose sum is σ = 20320000314. Its totient is φ = 20320000312.

The previous prime is 20320000303. The next prime is 20320000339. The reversal of 20320000313 is 31300002302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10885374889 + 9434625424 = 104333^2 + 97132^2 .

It is a cyclic number.

It is not a de Polignac number, because 20320000313 - 2¹⁸ = 20319738169 is a prime.

It is not a weakly prime, because it can be changed into another prime (20320000303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160000156 + 10160000157.

It is an arithmetic number, because the mean of its divisors is an integer number (10160000157).

Almost surely, 2^20320000313 is an apocalyptic number.

It is an amenable number.

20320000313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320000313 is an equidigital number, since it uses as much as digits as its factorization.

20320000313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 20320000313 its reverse (31300002302), we get a palindrome (51620002615).

The spelling of 20320000313 in words is "twenty billion, three hundred twenty million, three hundred thirteen", and thus it is an aban number.