12043019 has 4 divisors (see below), whose sum is σ = 12368544. Its totient is φ = 11717496.

The previous prime is 12043001. The next prime is 12043027. The reversal of 12043019 is 91034021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12043019 - 2²⁰ = 10994443 is a prime.

It is a super-2 number, since 2×12043019² = 290068613268722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12043039) 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 3 ways as a sum of consecutive naturals, for example, 162707 + ... + 162780.

It is an arithmetic number, because the mean of its divisors is an integer number (3092136).

Almost surely, 2^12043019 is an apocalyptic number.

12043019 is a deficient number, since it is larger than the sum of its proper divisors (325525).

12043019 is an equidigital number, since it uses as much as digits as its factorization.

12043019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325524.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12043019 is about 3470.3053179800. The cubic root of 12043019 is about 229.2161025838.

The spelling of 12043019 in words is "twelve million, forty-three thousand, nineteen".