213303234 has 16 divisors (see below), whose sum is σ = 449059680. Its totient is φ = 67358880.

The previous prime is 213303229. The next prime is 213303269. The reversal of 213303234 is 432303312.

213303234 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 213303234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 935427 + ... + 935654.

It is an arithmetic number, because the mean of its divisors is an integer number (28066230).

Almost surely, 2^213303234 is an apocalyptic number.

213303234 is an abundant number, since it is smaller than the sum of its proper divisors (235756446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213303234 is a wasteful number, since it uses less digits than its factorization.

213303234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871105.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 213303234 is about 14604.9044502181. The cubic root of 213303234 is about 597.4925300327.

Adding to 213303234 its reverse (432303312), we get a palindrome (645606546).

The spelling of 213303234 in words is "two hundred thirteen million, three hundred three thousand, two hundred thirty-four".