340340403311 has 2 divisors, whose sum is σ = 340340403312. Its totient is φ = 340340403310.

The previous prime is 340340403281. The next prime is 340340403313. The reversal of 340340403311 is 113304043043.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340340403311 is a prime.

Together with 340340403313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340340403313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170170201655 + 170170201656.

It is an arithmetic number, because the mean of its divisors is an integer number (170170201656).

Almost surely, 2^340340403311 is an apocalyptic number.

340340403311 is a deficient number, since it is larger than the sum of its proper divisors (1).

340340403311 is an equidigital number, since it uses as much as digits as its factorization.

340340403311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 340340403311 its reverse (113304043043), we get a palindrome (453644446354).

The spelling of 340340403311 in words is "three hundred forty billion, three hundred forty million, four hundred three thousand, three hundred eleven".