313666343 has 2 divisors, whose sum is σ = 313666344. Its totient is φ = 313666342.

The previous prime is 313666271. The next prime is 313666351. The reversal of 313666343 is 343666313.

It is a strong prime.

It is an emirp because it is prime and its reverse (343666313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313666343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313666363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156833171 + 156833172.

It is an arithmetic number, because the mean of its divisors is an integer number (156833172).

Almost surely, 2^313666343 is an apocalyptic number.

313666343 is a deficient number, since it is larger than the sum of its proper divisors (1).

313666343 is an equidigital number, since it uses as much as digits as its factorization.

313666343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 35.

The square root of 313666343 is about 17710.6279674099. The cubic root of 313666343 is about 679.4476071853.

The spelling of 313666343 in words is "three hundred thirteen million, six hundred sixty-six thousand, three hundred forty-three".