340512343 has 2 divisors, whose sum is σ = 340512344. Its totient is φ = 340512342.

The previous prime is 340512323. The next prime is 340512349. The reversal of 340512343 is 343215043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340512343 - 2⁵ = 340512311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340512349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170256171 + 170256172.

It is an arithmetic number, because the mean of its divisors is an integer number (170256172).

Almost surely, 2^340512343 is an apocalyptic number.

340512343 is a deficient number, since it is larger than the sum of its proper divisors (1).

340512343 is an equidigital number, since it uses as much as digits as its factorization.

340512343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 340512343 is about 18452.9765349658. The cubic root of 340512343 is about 698.3036085849.

Adding to 340512343 its reverse (343215043), we get a palindrome (683727386).

The spelling of 340512343 in words is "three hundred forty million, five hundred twelve thousand, three hundred forty-three".