211240223303 has 2 divisors, whose sum is σ = 211240223304. Its totient is φ = 211240223302.

The previous prime is 211240223237. The next prime is 211240223309. The reversal of 211240223303 is 303322042112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211240223303 - 2¹² = 211240219207 is a prime.

It is a super-2 number, since 2×211240223303² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211240223309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105620111651 + 105620111652.

It is an arithmetic number, because the mean of its divisors is an integer number (105620111652).

Almost surely, 2^211240223303 is an apocalyptic number.

211240223303 is a deficient number, since it is larger than the sum of its proper divisors (1).

211240223303 is an equidigital number, since it uses as much as digits as its factorization.

211240223303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 211240223303 its reverse (303322042112), we get a palindrome (514562265415).

The spelling of 211240223303 in words is "two hundred eleven billion, two hundred forty million, two hundred twenty-three thousand, three hundred three".