343205351 has 2 divisors, whose sum is σ = 343205352. Its totient is φ = 343205350.

The previous prime is 343205347. The next prime is 343205353. The reversal of 343205351 is 153502343.

It is a strong prime.

It is an emirp because it is prime and its reverse (153502343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343205351 - 2² = 343205347 is a prime.

Together with 343205353, 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 343205351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343205353) 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, 171602675 + 171602676.

It is an arithmetic number, because the mean of its divisors is an integer number (171602676).

Almost surely, 2^343205351 is an apocalyptic number.

343205351 is a deficient number, since it is larger than the sum of its proper divisors (1).

343205351 is an equidigital number, since it uses as much as digits as its factorization.

343205351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 343205351 is about 18525.8023038140. The cubic root of 343205351 is about 700.1396666891.

Adding to 343205351 its reverse (153502343), we get a palindrome (496707694).

The spelling of 343205351 in words is "three hundred forty-three million, two hundred five thousand, three hundred fifty-one".