211320089 has 2 divisors, whose sum is σ = 211320090. Its totient is φ = 211320088.

The previous prime is 211320079. The next prime is 211320091. The reversal of 211320089 is 980023112.

211320089 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., 110418064 + 100902025 = 10508^2 + 10045^2 .

It is a cyclic number.

It is not a de Polignac number, because 211320089 - 2⁸ = 211319833 is a prime.

Together with 211320091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211320059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105660044 + 105660045.

It is an arithmetic number, because the mean of its divisors is an integer number (105660045).

Almost surely, 2^211320089 is an apocalyptic number.

It is an amenable number.

211320089 is a deficient number, since it is larger than the sum of its proper divisors (1).

211320089 is an equidigital number, since it uses as much as digits as its factorization.

211320089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 211320089 is about 14536.8527886885. The cubic root of 211320089 is about 595.6350717460.

The spelling of 211320089 in words is "two hundred eleven million, three hundred twenty thousand, eighty-nine".