313220320333 has 2 divisors, whose sum is σ = 313220320334. Its totient is φ = 313220320332.

The previous prime is 313220320319. The next prime is 313220320337. The reversal of 313220320333 is 333023022313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312886965769 + 333354564 = 559363^2 + 18258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313220320333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313220320298 and 313220320307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313220320337) 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, 156610160166 + 156610160167.

It is an arithmetic number, because the mean of its divisors is an integer number (156610160167).

Almost surely, 2^313220320333 is an apocalyptic number.

It is an amenable number.

313220320333 is a deficient number, since it is larger than the sum of its proper divisors (1).

313220320333 is an equidigital number, since it uses as much as digits as its factorization.

313220320333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 25.

Adding to 313220320333 its reverse (333023022313), we get a palindrome (646243342646).

The spelling of 313220320333 in words is "three hundred thirteen billion, two hundred twenty million, three hundred twenty thousand, three hundred thirty-three".