12128043 has 16 divisors (see below), whose sum is σ = 16692480. Its totient is φ = 7828704.

The previous prime is 12128027. The next prime is 12128059. The reversal of 12128043 is 34082121.

It is an interprime number because it is at equal distance from previous prime (12128027) and next prime (12128059).

It is not a de Polignac number, because 12128043 - 2⁴ = 12128027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12128243) 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 in 15 ways as a sum of consecutive naturals, for example, 12738 + ... + 13656.

It is an arithmetic number, because the mean of its divisors is an integer number (1043280).

Almost surely, 2^12128043 is an apocalyptic number.

12128043 is a deficient number, since it is larger than the sum of its proper divisors (4564437).

12128043 is an equidigital number, since it uses as much as digits as its factorization.

12128043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12128043 is about 3482.5339912196. The cubic root of 12128043 is about 229.7542617998.

The spelling of 12128043 in words is "twelve million, one hundred twenty-eight thousand, forty-three".