343965975317 has 2 divisors, whose sum is σ = 343965975318. Its totient is φ = 343965975316.

The previous prime is 343965975257. The next prime is 343965975319. The reversal of 343965975317 is 713579569343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334999021681 + 8966953636 = 578791^2 + 94694^2 .

It is an emirp because it is prime and its reverse (713579569343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343965975317 - 2²⁶ = 343898866453 is a prime.

Together with 343965975319, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343965975317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343965975319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171982987658 + 171982987659.

It is an arithmetic number, because the mean of its divisors is an integer number (171982987659).

Almost surely, 2^343965975317 is an apocalyptic number.

It is an amenable number.

343965975317 is a deficient number, since it is larger than the sum of its proper divisors (1).

343965975317 is an equidigital number, since it uses as much as digits as its factorization.

343965975317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64297800, while the sum is 62.

The spelling of 343965975317 in words is "three hundred forty-three billion, nine hundred sixty-five million, nine hundred seventy-five thousand, three hundred seventeen".