343111009 has 2 divisors, whose sum is σ = 343111010. Its totient is φ = 343111008.

The previous prime is 343110997. The next prime is 343111103. The reversal of 343111009 is 900111343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193293409 + 149817600 = 13903^2 + 12240^2 .

It is an emirp because it is prime and its reverse (900111343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343111009 - 2⁹ = 343110497 is a prime.

It is not a weakly prime, because it can be changed into another prime (343115009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171555504 + 171555505.

It is an arithmetic number, because the mean of its divisors is an integer number (171555505).

Almost surely, 2^343111009 is an apocalyptic number.

It is an amenable number.

343111009 is a deficient number, since it is larger than the sum of its proper divisors (1).

343111009 is an equidigital number, since it uses as much as digits as its factorization.

343111009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 343111009 is about 18523.2558963051. The cubic root of 343111009 is about 700.0755081813.

The spelling of 343111009 in words is "three hundred forty-three million, one hundred eleven thousand, nine".