12011033 has 4 divisors (see below), whose sum is σ = 12019728. Its totient is φ = 12002340.

The previous prime is 12011029. The next prime is 12011047. The reversal of 12011033 is 33011021.

12011033 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 Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33011021 = 227 ⋅145423.

It is a cyclic number.

It is not a de Polignac number, because 12011033 - 2² = 12011029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011833) 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, 1763 + ... + 5208.

It is an arithmetic number, because the mean of its divisors is an integer number (3004932).

Almost surely, 2^12011033 is an apocalyptic number.

It is an amenable number.

12011033 is a deficient number, since it is larger than the sum of its proper divisors (8695).

12011033 is an equidigital number, since it uses as much as digits as its factorization.

12011033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8694.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 12011033 is about 3465.6937256486. The cubic root of 12011033 is about 229.0129916417.

Adding to 12011033 its reverse (33011021), we get a palindrome (45022054).

The spelling of 12011033 in words is "twelve million, eleven thousand, thirty-three".