343456111 has 2 divisors, whose sum is σ = 343456112. Its totient is φ = 343456110.

The previous prime is 343456109. The next prime is 343456121. The reversal of 343456111 is 111654343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343456111 - 2¹ = 343456109 is a prime.

Together with 343456109, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 343456111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343456121) 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, 171728055 + 171728056.

It is an arithmetic number, because the mean of its divisors is an integer number (171728056).

Almost surely, 2^343456111 is an apocalyptic number.

343456111 is a deficient number, since it is larger than the sum of its proper divisors (1).

343456111 is an equidigital number, since it uses as much as digits as its factorization.

343456111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 343456111 is about 18532.5689260825. The cubic root of 343456111 is about 700.3101421599.

The spelling of 343456111 in words is "three hundred forty-three million, four hundred fifty-six thousand, one hundred eleven".