12020300321 has 2 divisors, whose sum is σ = 12020300322. Its totient is φ = 12020300320.

The previous prime is 12020300317. The next prime is 12020300323. The reversal of 12020300321 is 12300302021.

It is a happy number.

12020300321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9257326225 + 2762974096 = 96215^2 + 52564^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020300321 - 2² = 12020300317 is a prime.

Together with 12020300323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020300296 and 12020300305.

It is not a weakly prime, because it can be changed into another prime (12020300323) 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, 6010150160 + 6010150161.

It is an arithmetic number, because the mean of its divisors is an integer number (6010150161).

Almost surely, 2^12020300321 is an apocalyptic number.

It is an amenable number.

12020300321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020300321 is an equidigital number, since it uses as much as digits as its factorization.

12020300321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12020300321 its reverse (12300302021), we get a palindrome (24320602342).

The spelling of 12020300321 in words is "twelve billion, twenty million, three hundred thousand, three hundred twenty-one".