213033213 has 8 divisors (see below), whose sum is σ = 315604800. Its totient is φ = 142022124.

The previous prime is 213033181. The next prime is 213033241. The reversal of 213033213 is 312330312.

It is not a de Polignac number, because 213033213 - 2⁵ = 213033181 is a prime.

It is a super-2 number, since 2×213033213² = 90766299682206738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213033283) 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, 3945033 + ... + 3945086.

It is an arithmetic number, because the mean of its divisors is an integer number (39450600).

Almost surely, 2^213033213 is an apocalyptic number.

It is an amenable number.

213033213 is a deficient number, since it is larger than the sum of its proper divisors (102571587).

213033213 is an equidigital number, since it uses as much as digits as its factorization.

213033213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890128 (or 7890122 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 213033213 is about 14595.6573336044. The cubic root of 213033213 is about 597.2403012320.

Adding to 213033213 its reverse (312330312), we get a palindrome (525363525).

The spelling of 213033213 in words is "two hundred thirteen million, thirty-three thousand, two hundred thirteen".