213313206 has 32 divisors (see below), whose sum is σ = 433375488. Its totient is φ = 69988320.

The previous prime is 213313187. The next prime is 213313211. The reversal of 213313206 is 602313312.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 110905 + ... + 112811.

It is an arithmetic number, because the mean of its divisors is an integer number (13542984).

Almost surely, 2^213313206 is an apocalyptic number.

213313206 is an abundant number, since it is smaller than the sum of its proper divisors (220062282).

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

213313206 is a wasteful number, since it uses less digits than its factorization.

213313206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 213313206 is about 14605.2458383966. The cubic root of 213313206 is about 597.5018408818.

Adding to 213313206 its reverse (602313312), we get a palindrome (815626518).

The spelling of 213313206 in words is "two hundred thirteen million, three hundred thirteen thousand, two hundred six".