320003232313 has 2 divisors, whose sum is σ = 320003232314. Its totient is φ = 320003232312.

The previous prime is 320003232287. The next prime is 320003232337. The reversal of 320003232313 is 313232300023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243811775529 + 76191456784 = 493773^2 + 276028^2 .

It is a cyclic number.

It is not a de Polignac number, because 320003232313 - 2⁵ = 320003232281 is a prime.

It is not a weakly prime, because it can be changed into another prime (320003232013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160001616156 + 160001616157.

It is an arithmetic number, because the mean of its divisors is an integer number (160001616157).

Almost surely, 2^320003232313 is an apocalyptic number.

It is an amenable number.

320003232313 is a deficient number, since it is larger than the sum of its proper divisors (1).

320003232313 is an equidigital number, since it uses as much as digits as its factorization.

320003232313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 320003232313 its reverse (313232300023), we get a palindrome (633235532336).

The spelling of 320003232313 in words is "three hundred twenty billion, three million, two hundred thirty-two thousand, three hundred thirteen".