343380311 has 2 divisors, whose sum is σ = 343380312. Its totient is φ = 343380310.

The previous prime is 343380307. The next prime is 343380337. The reversal of 343380311 is 113083343.

It is an a-pointer prime, because the next prime (343380337) can be obtained adding 343380311 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343380311 - 2² = 343380307 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343380341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171690155 + 171690156.

It is an arithmetic number, because the mean of its divisors is an integer number (171690156).

Almost surely, 2^343380311 is an apocalyptic number.

343380311 is a deficient number, since it is larger than the sum of its proper divisors (1).

343380311 is an equidigital number, since it uses as much as digits as its factorization.

343380311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 343380311 is about 18530.5237648589. The cubic root of 343380311 is about 700.2586194057.

The spelling of 343380311 in words is "three hundred forty-three million, three hundred eighty thousand, three hundred eleven".