211311214243 has 2 divisors, whose sum is σ = 211311214244. Its totient is φ = 211311214242.

The previous prime is 211311214241. The next prime is 211311214267. The reversal of 211311214243 is 342412113112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211311214243 - 2¹ = 211311214241 is a prime.

Together with 211311214241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (211311214241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105655607121 + 105655607122.

It is an arithmetic number, because the mean of its divisors is an integer number (105655607122).

Almost surely, 2^211311214243 is an apocalyptic number.

211311214243 is a deficient number, since it is larger than the sum of its proper divisors (1).

211311214243 is an equidigital number, since it uses as much as digits as its factorization.

211311214243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

Adding to 211311214243 its reverse (342412113112), we get a palindrome (553723327355).

The spelling of 211311214243 in words is "two hundred eleven billion, three hundred eleven million, two hundred fourteen thousand, two hundred forty-three".