340313423 has 2 divisors, whose sum is σ = 340313424. Its totient is φ = 340313422.

The previous prime is 340313419. The next prime is 340313431. The reversal of 340313423 is 324313043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340313423 - 2² = 340313419 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340313453) 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, 170156711 + 170156712.

It is an arithmetic number, because the mean of its divisors is an integer number (170156712).

Almost surely, 2^340313423 is an apocalyptic number.

340313423 is a deficient number, since it is larger than the sum of its proper divisors (1).

340313423 is an equidigital number, since it uses as much as digits as its factorization.

340313423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 340313423 is about 18447.5858312138. The cubic root of 340313423 is about 698.1676041059.

Adding to 340313423 its reverse (324313043), we get a palindrome (664626466).

The spelling of 340313423 in words is "three hundred forty million, three hundred thirteen thousand, four hundred twenty-three".