211200021020243 has 2 divisors, whose sum is σ = 211200021020244. Its totient is φ = 211200021020242.

The previous prime is 211200021020189. The next prime is 211200021020269. The reversal of 211200021020243 is 342020120002112.

211200021020243 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 is a cyclic number.

It is not a de Polignac number, because 211200021020243 - 2¹² = 211200021016147 is a prime.

It is not a weakly prime, because it can be changed into another prime (211200021025243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600010510121 + 105600010510122.

It is an arithmetic number, because the mean of its divisors is an integer number (105600010510122).

Almost surely, 2^{211200021020243} is an apocalyptic number.

211200021020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

211200021020243 is an equidigital number, since it uses as much as digits as its factorization.

211200021020243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 211200021020243 its reverse (342020120002112), we get a palindrome (553220141022355).

The spelling of 211200021020243 in words is "two hundred eleven trillion, two hundred billion, twenty-one million, twenty thousand, two hundred forty-three".