313220273 has 2 divisors, whose sum is σ = 313220274. Its totient is φ = 313220272.

The previous prime is 313220261. The next prime is 313220287. The reversal of 313220273 is 372022313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209323024 + 103897249 = 14468^2 + 10193^2 .

It is a cyclic number.

It is not a de Polignac number, because 313220273 - 2⁶ = 313220209 is a prime.

It is not a weakly prime, because it can be changed into another prime (313220573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156610136 + 156610137.

It is an arithmetic number, because the mean of its divisors is an integer number (156610137).

Almost surely, 2^313220273 is an apocalyptic number.

It is an amenable number.

313220273 is a deficient number, since it is larger than the sum of its proper divisors (1).

313220273 is an equidigital number, since it uses as much as digits as its factorization.

313220273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 313220273 is about 17698.0302011269. The cubic root of 313220273 is about 679.1253698921.

Adding to 313220273 its reverse (372022313), we get a palindrome (685242586).

The spelling of 313220273 in words is "three hundred thirteen million, two hundred twenty thousand, two hundred seventy-three".