211200020243 has 2 divisors, whose sum is σ = 211200020244. Its totient is φ = 211200020242.

The previous prime is 211200020221. The next prime is 211200020267. The reversal of 211200020243 is 342020002112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211200020243 - 2¹² = 211200016147 is a prime.

It is not a weakly prime, because it can be changed into another prime (211200020293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600010121 + 105600010122.

It is an arithmetic number, because the mean of its divisors is an integer number (105600010122).

Almost surely, 2^211200020243 is an apocalyptic number.

211200020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

211200020243 is an equidigital number, since it uses as much as digits as its factorization.

211200020243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 211200020243 its reverse (342020002112), we get a palindrome (553220022355).

The spelling of 211200020243 in words is "two hundred eleven billion, two hundred million, twenty thousand, two hundred forty-three".