12303221029991 has 2 divisors, whose sum is σ = 12303221029992. Its totient is φ = 12303221029990.

The previous prime is 12303221029961. The next prime is 12303221030027. The reversal of 12303221029991 is 19992012230321.

It is a happy number.

12303221029991 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 is an emirp because it is prime and its reverse (19992012230321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12303221029991 - 2¹⁸ = 12303220767847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12303221029951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151610514995 + 6151610514996.

It is an arithmetic number, because the mean of its divisors is an integer number (6151610514996).

Almost surely, 2^{12303221029991} is an apocalyptic number.

12303221029991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12303221029991 is an equidigital number, since it uses as much as digits as its factorization.

12303221029991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 12303221029991 in words is "twelve trillion, three hundred three billion, two hundred twenty-one million, twenty-nine thousand, nine hundred ninety-one".