12012043 has 4 divisors (see below), whose sum is σ = 12019248. Its totient is φ = 12004840.

The previous prime is 12012037. The next prime is 12012053. The reversal of 12012043 is 34021021.

12012043 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12012043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012053) 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, 330 + ... + 4912.

It is an arithmetic number, because the mean of its divisors is an integer number (3004812).

Almost surely, 2^12012043 is an apocalyptic number.

12012043 is a deficient number, since it is larger than the sum of its proper divisors (7205).

12012043 is an equidigital number, since it uses as much as digits as its factorization.

12012043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12012043 is about 3465.8394365579. The cubic root of 12012043 is about 229.0194106466.

Adding to 12012043 its reverse (34021021), we get a palindrome (46033064).

The spelling of 12012043 in words is "twelve million, twelve thousand, forty-three".