320320332263 has 2 divisors, whose sum is σ = 320320332264. Its totient is φ = 320320332262.

The previous prime is 320320332251. The next prime is 320320332341. The reversal of 320320332263 is 362233023023.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320320332263 - 2⁴ = 320320332247 is a prime.

It is a super-2 number, since 2×320320332263² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320320332863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160160166131 + 160160166132.

It is an arithmetic number, because the mean of its divisors is an integer number (160160166132).

Almost surely, 2^320320332263 is an apocalyptic number.

320320332263 is a deficient number, since it is larger than the sum of its proper divisors (1).

320320332263 is an equidigital number, since it uses as much as digits as its factorization.

320320332263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 29.

Adding to 320320332263 its reverse (362233023023), we get a palindrome (682553355286).

The spelling of 320320332263 in words is "three hundred twenty billion, three hundred twenty million, three hundred thirty-two thousand, two hundred sixty-three".