213132223 has 16 divisors (see below), whose sum is σ = 228556800. Its totient is φ = 198303840.

The previous prime is 213132221. The next prime is 213132233. The reversal of 213132223 is 322231312.

It is a cyclic number.

It is not a de Polignac number, because 213132223 - 2¹ = 213132221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213132223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213132221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344008 + ... + 344626.

It is an arithmetic number, because the mean of its divisors is an integer number (14284800).

Almost surely, 2^213132223 is an apocalyptic number.

213132223 is a deficient number, since it is larger than the sum of its proper divisors (15424577).

213132223 is a wasteful number, since it uses less digits than its factorization.

213132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

The product of its digits is 432, while the sum is 19.

The square root of 213132223 is about 14599.0487018847. The cubic root of 213132223 is about 597.3328120082.

Adding to 213132223 its reverse (322231312), we get a palindrome (535363535).

The spelling of 213132223 in words is "two hundred thirteen million, one hundred thirty-two thousand, two hundred twenty-three".