340120211 has 2 divisors, whose sum is σ = 340120212. Its totient is φ = 340120210.

The previous prime is 340120181. The next prime is 340120219. The reversal of 340120211 is 112021043.

It is a strong prime.

It is an emirp because it is prime and its reverse (112021043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340120211 - 2²² = 335925907 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (340120219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170060105 + 170060106.

It is an arithmetic number, because the mean of its divisors is an integer number (170060106).

Almost surely, 2^340120211 is an apocalyptic number.

340120211 is a deficient number, since it is larger than the sum of its proper divisors (1).

340120211 is an equidigital number, since it uses as much as digits as its factorization.

340120211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 340120211 is about 18442.3483049204. The cubic root of 340120211 is about 698.0354515208.

Adding to 340120211 its reverse (112021043), we get a palindrome (452141254).

The spelling of 340120211 in words is "three hundred forty million, one hundred twenty thousand, two hundred eleven".