213230330 has 32 divisors (see below), whose sum is σ = 398733840. Its totient is φ = 82001920.

The previous prime is 213230323. The next prime is 213230341. The reversal of 213230330 is 33032312.

It can be written as a sum of positive squares in 8 ways, for example, as 167003929 + 46226401 = 12923^2 + 6799^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213230299 and 213230308.

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, 73100 + ... + 75960.

Almost surely, 2^213230330 is an apocalyptic number.

213230330 is a deficient number, since it is larger than the sum of its proper divisors (185503510).

213230330 is a wasteful number, since it uses less digits than its factorization.

213230330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3154.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 213230330 is about 14602.4083630064. The cubic root of 213230330 is about 597.4244508039.

Adding to 213230330 its reverse (33032312), we get a palindrome (246262642).

The spelling of 213230330 in words is "two hundred thirteen million, two hundred thirty thousand, three hundred thirty".