12103591 has 2 divisors, whose sum is σ = 12103592. Its totient is φ = 12103590.

The previous prime is 12103579. The next prime is 12103603. The reversal of 12103591 is 19530121.

12103591 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (12103579) and next prime (12103603).

It is a cyclic number.

It is not a de Polignac number, because 12103591 - 2⁹ = 12103079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12103501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051795 + 6051796.

It is an arithmetic number, because the mean of its divisors is an integer number (6051796).

Almost surely, 2^12103591 is an apocalyptic number.

12103591 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103591 is an equidigital number, since it uses as much as digits as its factorization.

12103591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 12103591 is about 3479.0215578521. The cubic root of 12103591 is about 229.5997512714.

The spelling of 12103591 in words is "twelve million, one hundred three thousand, five hundred ninety-one".