213020330 has 16 divisors (see below), whose sum is σ = 388057824. Its totient is φ = 84181200.

The previous prime is 213020317. The next prime is 213020333. The reversal of 213020330 is 33020312.

It is not an unprimeable number, because it can be changed into a prime (213020333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127496 + ... + 129155.

It is an arithmetic number, because the mean of its divisors is an integer number (24253614).

Almost surely, 2^213020330 is an apocalyptic number.

213020330 is a deficient number, since it is larger than the sum of its proper divisors (175037494).

213020330 is a wasteful number, since it uses less digits than its factorization.

213020330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256741.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 213020330 is about 14595.2159970314. The cubic root of 213020330 is about 597.2282617918.

Adding to 213020330 its reverse (33020312), we get a palindrome (246040642).

The spelling of 213020330 in words is "two hundred thirteen million, twenty thousand, three hundred thirty".