213223111 has 8 divisors (see below), whose sum is σ = 229665920. Its totient is φ = 197302392.

The previous prime is 213223093. The next prime is 213223117. The reversal of 213223111 is 111322312.

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 213223111 - 2⁵ = 213223079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213223117) 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, 129675 + ... + 131308.

It is an arithmetic number, because the mean of its divisors is an integer number (28708240).

Almost surely, 2^213223111 is an apocalyptic number.

213223111 is a deficient number, since it is larger than the sum of its proper divisors (16442809).

213223111 is a wasteful number, since it uses less digits than its factorization.

213223111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261045.

The product of its digits is 72, while the sum is 16.

The square root of 213223111 is about 14602.1611756616. The cubic root of 213223111 is about 597.4177087115.

Adding to 213223111 its reverse (111322312), we get a palindrome (324545423).

It can be divided in two parts, 21322311 and 1, that added together give a palindrome (21322312).

The spelling of 213223111 in words is "two hundred thirteen million, two hundred twenty-three thousand, one hundred eleven".