12003121233 has 6 divisors (see below), whose sum is σ = 17337841794. Its totient is φ = 8002080816.

The previous prime is 12003121211. The next prime is 12003121243. The reversal of 12003121233 is 33212130021.

12003121233 is a `hidden beast` number, since 120 + 0 + 312 + 1 + 233 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11567647809 + 435473424 = 107553^2 + 20868^2 .

It is not a de Polignac number, because 12003121233 - 2²⁵ = 11969566801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12003121243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666840060 + ... + 666840077.

It is an arithmetic number, because the mean of its divisors is an integer number (2889640299).

Almost surely, 2^12003121233 is an apocalyptic number.

It is an amenable number.

12003121233 is a deficient number, since it is larger than the sum of its proper divisors (5334720561).

12003121233 is a wasteful number, since it uses less digits than its factorization.

12003121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1333680143 (or 1333680140 counting only the distinct ones).

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

Adding to 12003121233 its reverse (33212130021), we get a palindrome (45215251254).

The spelling of 12003121233 in words is "twelve billion, three million, one hundred twenty-one thousand, two hundred thirty-three".