213313133 has 16 divisors (see below), whose sum is σ = 245721600. Its totient is φ = 183138480.

The previous prime is 213313123. The next prime is 213313141. The reversal of 213313133 is 331313312.

It is a cyclic number.

It is not a de Polignac number, because 213313133 - 2¹⁶ = 213247597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213313123) by changing a digit.

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, 73610 + ... + 76452.

It is an arithmetic number, because the mean of its divisors is an integer number (15357600).

Almost surely, 2^213313133 is an apocalyptic number.

It is an amenable number.

213313133 is a deficient number, since it is larger than the sum of its proper divisors (32408467).

213313133 is a wasteful number, since it uses less digits than its factorization.

213313133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232.

The product of its digits is 486, while the sum is 20.

The square root of 213313133 is about 14605.2433392943. The cubic root of 213313133 is about 597.5017727228.

Adding to 213313133 its reverse (331313312), we get a palindrome (544626445).

The spelling of 213313133 in words is "two hundred thirteen million, three hundred thirteen thousand, one hundred thirty-three".