313122311 has 2 divisors, whose sum is σ = 313122312. Its totient is φ = 313122310.

The previous prime is 313122301. The next prime is 313122317. The reversal of 313122311 is 113221313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313122311 - 2⁶ = 313122247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313122311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313122317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156561155 + 156561156.

It is an arithmetic number, because the mean of its divisors is an integer number (156561156).

Almost surely, 2^313122311 is an apocalyptic number.

313122311 is a deficient number, since it is larger than the sum of its proper divisors (1).

313122311 is an equidigital number, since it uses as much as digits as its factorization.

313122311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 17.

The square root of 313122311 is about 17695.2623885604. The cubic root of 313122311 is about 679.0545619845.

Adding to 313122311 its reverse (113221313), we get a palindrome (426343624).

The spelling of 313122311 in words is "three hundred thirteen million, one hundred twenty-two thousand, three hundred eleven".