12105043 has 2 divisors, whose sum is σ = 12105044. Its totient is φ = 12105042.

The previous prime is 12105029. The next prime is 12105073. The reversal of 12105043 is 34050121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12105043 - 2⁵ = 12105011 is a prime.

It is not a weakly prime, because it can be changed into another prime (12105073) 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, 6052521 + 6052522.

It is an arithmetic number, because the mean of its divisors is an integer number (6052522).

Almost surely, 2^12105043 is an apocalyptic number.

12105043 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105043 is an equidigital number, since it uses as much as digits as its factorization.

12105043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12105043 is about 3479.2302309563. The cubic root of 12105043 is about 229.6089321696.

Adding to 12105043 its reverse (34050121), we get a palindrome (46155164).

The spelling of 12105043 in words is "twelve million, one hundred five thousand, forty-three".