12105307 has 2 divisors, whose sum is σ = 12105308. Its totient is φ = 12105306.

The previous prime is 12105293. The next prime is 12105319. The reversal of 12105307 is 70350121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12105307 is a prime.

It is not a weakly prime, because it can be changed into another prime (12105397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052653 + 6052654.

It is an arithmetic number, because the mean of its divisors is an integer number (6052654).

Almost surely, 2^12105307 is an apocalyptic number.

12105307 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105307 is an equidigital number, since it uses as much as digits as its factorization.

12105307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 12105307 is about 3479.2681701760. The cubic root of 12105307 is about 229.6106013449.

Adding to 12105307 its reverse (70350121), we get a palindrome (82455428).

The spelling of 12105307 in words is "twelve million, one hundred five thousand, three hundred seven".