340340111 has 2 divisors, whose sum is σ = 340340112. Its totient is φ = 340340110.

The previous prime is 340340107. The next prime is 340340123. The reversal of 340340111 is 111043043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340340111 - 2² = 340340107 is a prime.

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 340340111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340310111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170170055 + 170170056.

It is an arithmetic number, because the mean of its divisors is an integer number (170170056).

Almost surely, 2^340340111 is an apocalyptic number.

340340111 is a deficient number, since it is larger than the sum of its proper divisors (1).

340340111 is an equidigital number, since it uses as much as digits as its factorization.

340340111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 340340111 is about 18448.3091637147. The cubic root of 340340111 is about 698.1858541549.

Adding to 340340111 its reverse (111043043), we get a palindrome (451383154).

The spelling of 340340111 in words is "three hundred forty million, three hundred forty thousand, one hundred eleven".