313320440263 has 2 divisors, whose sum is σ = 313320440264. Its totient is φ = 313320440262.

The previous prime is 313320440243. The next prime is 313320440299. The reversal of 313320440263 is 362044023313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313320440263 - 2⁵ = 313320440231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313320440203) 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, 156660220131 + 156660220132.

It is an arithmetic number, because the mean of its divisors is an integer number (156660220132).

Almost surely, 2^313320440263 is an apocalyptic number.

313320440263 is a deficient number, since it is larger than the sum of its proper divisors (1).

313320440263 is an equidigital number, since it uses as much as digits as its factorization.

313320440263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 313320440263 its reverse (362044023313), we get a palindrome (675364463576).

The spelling of 313320440263 in words is "three hundred thirteen billion, three hundred twenty million, four hundred forty thousand, two hundred sixty-three".