206230321 has 8 divisors (see below), whose sum is σ = 232236288. Its totient is φ = 181434000.

The previous prime is 206230319. The next prime is 206230327. The reversal of 206230321 is 123032602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206230321 - 2¹ = 206230319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206230327) 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, 302050 + ... + 302731.

It is an arithmetic number, because the mean of its divisors is an integer number (29029536).

Almost surely, 2^206230321 is an apocalyptic number.

It is an amenable number.

206230321 is a deficient number, since it is larger than the sum of its proper divisors (26005967).

206230321 is a wasteful number, since it uses less digits than its factorization.

206230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604823.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 206230321 is about 14360.7214651632. The cubic root of 206230321 is about 590.8140835247.

Adding to 206230321 its reverse (123032602), we get a palindrome (329262923).

The spelling of 206230321 in words is "two hundred six million, two hundred thirty thousand, three hundred twenty-one".