12066003 has 20 divisors (see below), whose sum is σ = 18146128. Its totient is φ = 7989840.

The previous prime is 12065993. The next prime is 12066023. The reversal of 12066003 is 30066021.

It is a happy number.

12066003 is a `hidden beast` number, since 1 + 2 + 0 + 660 + 0 + 3 = 666.

12066003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12066003 - 2⁴ = 12065987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12066023) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14250 + ... + 15072.

Almost surely, 2^12066003 is an apocalyptic number.

12066003 is a deficient number, since it is larger than the sum of its proper divisors (6080125).

12066003 is an equidigital number, since it uses as much as digits as its factorization.

12066003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 12066003 is about 3473.6152636698. The cubic root of 12066003 is about 229.3618289155.

Adding to 12066003 its sum of digits (18), we get a palindrome (12066021).

The spelling of 12066003 in words is "twelve million, sixty-six thousand, three".