210544315321 has 2 divisors, whose sum is σ = 210544315322. Its totient is φ = 210544315320.

The previous prime is 210544315313. The next prime is 210544315339. The reversal of 210544315321 is 123513445012.

210544315321 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., 210534145600 + 10169721 = 458840^2 + 3189^2 .

It is a cyclic number.

It is not a de Polignac number, because 210544315321 - 2³ = 210544315313 is a prime.

It is not a weakly prime, because it can be changed into another prime (210544316321) 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, 105272157660 + 105272157661.

It is an arithmetic number, because the mean of its divisors is an integer number (105272157661).

Almost surely, 2^210544315321 is an apocalyptic number.

It is an amenable number.

210544315321 is a deficient number, since it is larger than the sum of its proper divisors (1).

210544315321 is an equidigital number, since it uses as much as digits as its factorization.

210544315321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 210544315321 in words is "two hundred ten billion, five hundred forty-four million, three hundred fifteen thousand, three hundred twenty-one".