211102320281 has 2 divisors, whose sum is σ = 211102320282. Its totient is φ = 211102320280.

The previous prime is 211102320259. The next prime is 211102320347. The reversal of 211102320281 is 182023201112.

211102320281 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., 174653783056 + 36448537225 = 417916^2 + 190915^2 .

It is a cyclic number.

It is not a de Polignac number, because 211102320281 - 2¹⁸ = 211102058137 is a prime.

It is a super-2 number, since 2×211102320281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211102320881) 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, 105551160140 + 105551160141.

It is an arithmetic number, because the mean of its divisors is an integer number (105551160141).

Almost surely, 2^211102320281 is an apocalyptic number.

It is an amenable number.

211102320281 is a deficient number, since it is larger than the sum of its proper divisors (1).

211102320281 is an equidigital number, since it uses as much as digits as its factorization.

211102320281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 211102320281 its reverse (182023201112), we get a palindrome (393125521393).

The spelling of 211102320281 in words is "two hundred eleven billion, one hundred two million, three hundred twenty thousand, two hundred eighty-one".