213321230 has 16 divisors (see below), whose sum is σ = 396365184. Its totient is φ = 82575840.

The previous prime is 213321223. The next prime is 213321239. The reversal of 213321230 is 32123312.

It is a junction number, because it is equal to n+sod(n) for n = 213321199 and 213321208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213321239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343757 + ... + 344376.

It is an arithmetic number, because the mean of its divisors is an integer number (24772824).

Almost surely, 2^213321230 is an apocalyptic number.

213321230 is a deficient number, since it is larger than the sum of its proper divisors (183043954).

213321230 is a wasteful number, since it uses less digits than its factorization.

213321230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688171.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 213321230 is about 14605.5205316346. The cubic root of 213321230 is about 597.5093326740.

Adding to 213321230 its reverse (32123312), we get a palindrome (245444542).

The spelling of 213321230 in words is "two hundred thirteen million, three hundred twenty-one thousand, two hundred thirty".