213333313 has 4 divisors (see below), whose sum is σ = 213610068. Its totient is φ = 213056560.

The previous prime is 213333301. The next prime is 213333319. The reversal of 213333313 is 313333312.

213333313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80784144 + 132549169 = 8988^2 + 11513^2 .

It is a cyclic number.

It is not a de Polignac number, because 213333313 - 2²¹ = 211236161 is a prime.

It is a super-2 number, since 2×213333313² = 91022204871111938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213333319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137218 + ... + 138763.

It is an arithmetic number, because the mean of its divisors is an integer number (53402517).

Almost surely, 2^213333313 is an apocalyptic number.

It is an amenable number.

213333313 is a deficient number, since it is larger than the sum of its proper divisors (276755).

213333313 is an equidigital number, since it uses as much as digits as its factorization.

213333313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276754.

The product of its digits is 1458, while the sum is 22.

The square root of 213333313 is about 14605.9341707403. The cubic root of 213333313 is about 597.5206138906.

Adding to 213333313 its reverse (313333312), we get a palindrome (526666625).

Subtracting 213333313 from its reverse (313333312), we obtain a palindrome (99999999).

The spelling of 213333313 in words is "two hundred thirteen million, three hundred thirty-three thousand, three hundred thirteen".