12043013 has 4 divisors (see below), whose sum is σ = 12050028. Its totient is φ = 12036000.

The previous prime is 12043001. The next prime is 12043027. The reversal of 12043013 is 31034021.

12043013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8421604 + 3621409 = 2902^2 + 1903^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12043013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12043063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (3012507).

Almost surely, 2^12043013 is an apocalyptic number.

It is an amenable number.

12043013 is a deficient number, since it is larger than the sum of its proper divisors (7015).

12043013 is an equidigital number, since it uses as much as digits as its factorization.

12043013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7014.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12043013 is about 3470.3044535026. The cubic root of 12043013 is about 229.2160645175.

Adding to 12043013 its reverse (31034021), we get a palindrome (43077034).

The spelling of 12043013 in words is "twelve million, forty-three thousand, thirteen".