213303333013 has 4 divisors (see below), whose sum is σ = 213851671020. Its totient is φ = 212754995008.

The previous prime is 213303332969. The next prime is 213303333037. The reversal of 213303333013 is 310333303312.

213303333013 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 157118689924 + 56184643089 = 396382^2 + 237033^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213303333013 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 (213303333043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274168420 + ... + 274169197.

It is an arithmetic number, because the mean of its divisors is an integer number (53462917755).

Almost surely, 2^213303333013 is an apocalyptic number.

It is an amenable number.

213303333013 is a deficient number, since it is larger than the sum of its proper divisors (548338007).

213303333013 is an equidigital number, since it uses as much as digits as its factorization.

213303333013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548338006.

The product of its (nonzero) digits is 4374, while the sum is 25.

Adding to 213303333013 its reverse (310333303312), we get a palindrome (523636636325).

The spelling of 213303333013 in words is "two hundred thirteen billion, three hundred three million, three hundred thirty-three thousand, thirteen".