211341223 has 4 divisors (see below), whose sum is σ = 211404640. Its totient is φ = 211277808.

The previous prime is 211341217. The next prime is 211341233. The reversal of 211341223 is 322143112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211341223 - 2⁵ = 211341191 is a prime.

It is a super-2 number, since 2×211341223² = 89330225078271458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211341223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211341203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26415 + ... + 33472.

It is an arithmetic number, because the mean of its divisors is an integer number (52851160).

Almost surely, 2^211341223 is an apocalyptic number.

211341223 is a deficient number, since it is larger than the sum of its proper divisors (63417).

211341223 is an equidigital number, since it uses as much as digits as its factorization.

211341223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63416.

The product of its digits is 288, while the sum is 19.

The square root of 211341223 is about 14537.5796816389. The cubic root of 211341223 is about 595.6549274572.

Adding to 211341223 its reverse (322143112), we get a palindrome (533484335).

The spelling of 211341223 in words is "two hundred eleven million, three hundred forty-one thousand, two hundred twenty-three".