313121119 has 2 divisors, whose sum is σ = 313121120. Its totient is φ = 313121118.

The previous prime is 313121101. The next prime is 313121143. The reversal of 313121119 is 911121313.

It is a weak prime.

It is an emirp because it is prime and its reverse (911121313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313121119 - 2⁵ = 313121087 is a prime.

It is a super-2 number, since 2×313121119² = 196089670327624322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313121119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313121219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156560559 + 156560560.

It is an arithmetic number, because the mean of its divisors is an integer number (156560560).

Almost surely, 2^313121119 is an apocalyptic number.

313121119 is a deficient number, since it is larger than the sum of its proper divisors (1).

313121119 is an equidigital number, since it uses as much as digits as its factorization.

313121119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 22.

The square root of 313121119 is about 17695.2287071968. The cubic root of 313121119 is about 679.0537003041.

The spelling of 313121119 in words is "three hundred thirteen million, one hundred twenty-one thousand, one hundred nineteen".