211243232243 has 2 divisors, whose sum is σ = 211243232244. Its totient is φ = 211243232242.

The previous prime is 211243232209. The next prime is 211243232267. The reversal of 211243232243 is 342232342112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211243232243 - 2²⁰ = 211242183667 is a prime.

It is a super-2 number, since 2×211243232243² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211243232293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105621616121 + 105621616122.

It is an arithmetic number, because the mean of its divisors is an integer number (105621616122).

Almost surely, 2^211243232243 is an apocalyptic number.

211243232243 is a deficient number, since it is larger than the sum of its proper divisors (1).

211243232243 is an equidigital number, since it uses as much as digits as its factorization.

211243232243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 29.

Adding to 211243232243 its reverse (342232342112), we get a palindrome (553475574355).

The spelling of 211243232243 in words is "two hundred eleven billion, two hundred forty-three million, two hundred thirty-two thousand, two hundred forty-three".