213313303 has 4 divisors (see below), whose sum is σ = 243786640. Its totient is φ = 182839968.

The previous prime is 213313301. The next prime is 213313343. The reversal of 213313303 is 303313312.

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

It is a cyclic number.

It is not a de Polignac number, because 213313303 - 2¹ = 213313301 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 (213313301) 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 3 ways as a sum of consecutive naturals, for example, 15236658 + ... + 15236671.

It is an arithmetic number, because the mean of its divisors is an integer number (60946660).

Almost surely, 2^213313303 is an apocalyptic number.

213313303 is a deficient number, since it is larger than the sum of its proper divisors (30473337).

213313303 is an equidigital number, since it uses as much as digits as its factorization.

213313303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30473336.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 213313303 is about 14605.2491591208. The cubic root of 213313303 is about 597.5019314492.

Adding to 213313303 its reverse (303313312), we get a palindrome (516626615).

Subtracting 213313303 from its reverse (303313312), we obtain a palindrome (90000009).

The spelling of 213313303 in words is "two hundred thirteen million, three hundred thirteen thousand, three hundred three".