201445115321 has 2 divisors, whose sum is σ = 201445115322. Its totient is φ = 201445115320.

The previous prime is 201445115309. The next prime is 201445115353. The reversal of 201445115321 is 123511544102.

It is a happy number.

201445115321 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., 126334039225 + 75111076096 = 355435^2 + 274064^2 .

It is a cyclic number.

It is not a de Polignac number, because 201445115321 - 2⁶ = 201445115257 is a prime.

It is not a weakly prime, because it can be changed into another prime (201445115021) 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 as a sum of consecutive naturals, namely, 100722557660 + 100722557661.

It is an arithmetic number, because the mean of its divisors is an integer number (100722557661).

Almost surely, 2^201445115321 is an apocalyptic number.

It is an amenable number.

201445115321 is a deficient number, since it is larger than the sum of its proper divisors (1).

201445115321 is an equidigital number, since it uses as much as digits as its factorization.

201445115321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 201445115321 its reverse (123511544102), we get a palindrome (324956659423).

The spelling of 201445115321 in words is "two hundred one billion, four hundred forty-five million, one hundred fifteen thousand, three hundred twenty-one".