12030233021 has 16 divisors (see below), whose sum is σ = 13099329600. Its totient is φ = 11009167488.

The previous prime is 12030233003. The next prime is 12030233027. The reversal of 12030233021 is 12033203021.

It is a cyclic number.

It is not a de Polignac number, because 12030233021 - 2⁶ = 12030232957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030233027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36161 + ... + 159273.

It is an arithmetic number, because the mean of its divisors is an integer number (818708100).

Almost surely, 2^12030233021 is an apocalyptic number.

It is an amenable number.

12030233021 is a deficient number, since it is larger than the sum of its proper divisors (1069096579).

12030233021 is a wasteful number, since it uses less digits than its factorization.

12030233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123308.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12030233021 its reverse (12033203021), we get a palindrome (24063436042).

The spelling of 12030233021 in words is "twelve billion, thirty million, two hundred thirty-three thousand, twenty-one".