213333303 has 16 divisors (see below), whose sum is σ = 297351936. Its totient is φ = 135791040.

The previous prime is 213333301. The next prime is 213333319. The reversal of 213333303 is 303333312.

It is not a de Polignac number, because 213333303 - 2¹ = 213333301 is a prime.

It is a super-2 number, since 2×213333303² = 91022196337779618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213333303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213333301) 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, 40068 + ... + 45078.

It is an arithmetic number, because the mean of its divisors is an integer number (18584496).

Almost surely, 2^213333303 is an apocalyptic number.

213333303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

213333303 is a deficient number, since it is larger than the sum of its proper divisors (84018633).

213333303 is a wasteful number, since it uses less digits than its factorization.

213333303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5654.

The product of its (nonzero) digits is 1458, while the sum is 21.

The square root of 213333303 is about 14605.9338284137. The cubic root of 213333303 is about 597.5206045543.

Adding to 213333303 its reverse (303333312), we get a palindrome (516666615).

Subtracting 213333303 from its reverse (303333312), we obtain a palindrome (90000009).

The spelling of 213333303 in words is "two hundred thirteen million, three hundred thirty-three thousand, three hundred three".