12109103 has 2 divisors, whose sum is σ = 12109104. Its totient is φ = 12109102.

The previous prime is 12109091. The next prime is 12109147. The reversal of 12109103 is 30190121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12109103 - 2⁶ = 12109039 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12109183) 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, 6054551 + 6054552.

It is an arithmetic number, because the mean of its divisors is an integer number (6054552).

Almost surely, 2^12109103 is an apocalyptic number.

12109103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12109103 is an equidigital number, since it uses as much as digits as its factorization.

12109103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 12109103 is about 3479.8136444356. The cubic root of 12109103 is about 229.6345993802.

Adding to 12109103 its reverse (30190121), we get a palindrome (42299224).

The spelling of 12109103 in words is "twelve million, one hundred nine thousand, one hundred three".