12340571 has 2 divisors, whose sum is σ = 12340572. Its totient is φ = 12340570.

The previous prime is 12340553. The next prime is 12340591. The reversal of 12340571 is 17504321.

It is a weak prime.

It is an emirp because it is prime and its reverse (17504321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12340571 - 2⁶ = 12340507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12340541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6170285 + 6170286.

It is an arithmetic number, because the mean of its divisors is an integer number (6170286).

Almost surely, 2^12340571 is an apocalyptic number.

12340571 is a deficient number, since it is larger than the sum of its proper divisors (1).

12340571 is an equidigital number, since it uses as much as digits as its factorization.

12340571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 12340571 is about 3512.9148865294. The cubic root of 12340571 is about 231.0885451049.

Adding to 12340571 its reverse (17504321), we get a palindrome (29844892).

The spelling of 12340571 in words is "twelve million, three hundred forty thousand, five hundred seventy-one".