211143343241223 has 16 divisors (see below), whose sum is σ = 317932903000800. Its totient is φ = 138454651304640.

The previous prime is 211143343241221. The next prime is 211143343241231. The reversal of 211143343241223 is 322142343341112.

211143343241223 is a `hidden beast` number, since 2 + 1 + 11 + 43 + 343 + 2 + 41 + 223 = 666.

It is not a de Polignac number, because 211143343241223 - 2¹ = 211143343241221 is a prime.

It is a super-2 number, since 2×211143343241223² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211143343241221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64099373958 + ... + 64099377251.

It is an arithmetic number, because the mean of its divisors is an integer number (19870806437550).

Almost surely, 2^{211143343241223} is an apocalyptic number.

211143343241223 is a deficient number, since it is larger than the sum of its proper divisors (106789559759577).

211143343241223 is a wasteful number, since it uses less digits than its factorization.

211143343241223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128198751279 (or 128198751273 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

Adding to 211143343241223 its reverse (322142343341112), we get a palindrome (533285686582335).

The spelling of 211143343241223 in words is "two hundred eleven trillion, one hundred forty-three billion, three hundred forty-three million, two hundred forty-one thousand, two hundred twenty-three".