320331231263 has 2 divisors, whose sum is σ = 320331231264. Its totient is φ = 320331231262.

The previous prime is 320331231211. The next prime is 320331231271. The reversal of 320331231263 is 362132133023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320331231263 - 2³⁴ = 303151362079 is a prime.

It is a super-2 number, since 2×320331231263² (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 (320331231163) 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, 160165615631 + 160165615632.

It is an arithmetic number, because the mean of its divisors is an integer number (160165615632).

Almost surely, 2^320331231263 is an apocalyptic number.

320331231263 is a deficient number, since it is larger than the sum of its proper divisors (1).

320331231263 is an equidigital number, since it uses as much as digits as its factorization.

320331231263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 320331231263 its reverse (362132133023), we get a palindrome (682463364286).

The spelling of 320331231263 in words is "three hundred twenty billion, three hundred thirty-one million, two hundred thirty-one thousand, two hundred sixty-three".