12405343 has 2 divisors, whose sum is σ = 12405344. Its totient is φ = 12405342.

The previous prime is 12405331. The next prime is 12405353. The reversal of 12405343 is 34350421.

12405343 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12405343 - 2¹⁷ = 12274271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12405313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202671 + 6202672.

It is an arithmetic number, because the mean of its divisors is an integer number (6202672).

Almost surely, 2^12405343 is an apocalyptic number.

12405343 is a deficient number, since it is larger than the sum of its proper divisors (1).

12405343 is an equidigital number, since it uses as much as digits as its factorization.

12405343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 12405343 is about 3522.1219456458. The cubic root of 12405343 is about 231.4921448975.

Adding to 12405343 its reverse (34350421), we get a palindrome (46755764).

The spelling of 12405343 in words is "twelve million, four hundred five thousand, three hundred forty-three".