213233210 has 32 divisors (see below), whose sum is σ = 416323152. Its totient is φ = 78315520.

The previous prime is 213233203. The next prime is 213233233. The reversal of 213233210 is 12332312.

It can be written as a sum of positive squares in 8 ways, for example, as 82428241 + 130804969 = 9079^2 + 11437^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8327 + ... + 22266.

Almost surely, 2^213233210 is an apocalyptic number.

213233210 is a deficient number, since it is larger than the sum of its proper divisors (203089942).

213233210 is a wasteful number, since it uses less digits than its factorization.

213233210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30658.

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

The square root of 213233210 is about 14602.5069765434. The cubic root of 213233210 is about 597.4271405005.

Adding to 213233210 its reverse (12332312), we get a palindrome (225565522).

The spelling of 213233210 in words is "two hundred thirteen million, two hundred thirty-three thousand, two hundred ten".