12032117021 has 2 divisors, whose sum is σ = 12032117022. Its totient is φ = 12032117020.

The previous prime is 12032117003. The next prime is 12032117059. The reversal of 12032117021 is 12071123021.

12032117021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6273432025 + 5758684996 = 79205^2 + 75886^2 .

It is an emirp because it is prime and its reverse (12071123021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12032117021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12032116984 and 12032117002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12032117921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6016058510 + 6016058511.

It is an arithmetic number, because the mean of its divisors is an integer number (6016058511).

Almost surely, 2^12032117021 is an apocalyptic number.

It is an amenable number.

12032117021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12032117021 is an equidigital number, since it uses as much as digits as its factorization.

12032117021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The spelling of 12032117021 in words is "twelve billion, thirty-two million, one hundred seventeen thousand, twenty-one".