211342223 has 8 divisors (see below), whose sum is σ = 212556960. Its totient is φ = 210131680.

The previous prime is 211342211. The next prime is 211342231. The reversal of 211342223 is 322243112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211342223 - 2⁴ = 211342207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211342195 and 211342204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211342273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164861 + ... + 166137.

It is an arithmetic number, because the mean of its divisors is an integer number (26569620).

Almost surely, 2^211342223 is an apocalyptic number.

211342223 is a deficient number, since it is larger than the sum of its proper divisors (1214737).

211342223 is a wasteful number, since it uses less digits than its factorization.

211342223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097.

The product of its digits is 576, while the sum is 20.

The square root of 211342223 is about 14537.6140752188. The cubic root of 211342223 is about 595.6558669394.

Adding to 211342223 its reverse (322243112), we get a palindrome (533585335).

The spelling of 211342223 in words is "two hundred eleven million, three hundred forty-two thousand, two hundred twenty-three".