2013213133 has 4 divisors (see below), whose sum is σ = 2013778908. Its totient is φ = 2012647360.

The previous prime is 2013213127. The next prime is 2013213157. The reversal of 2013213133 is 3313123102.

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 1579824009 + 433389124 = 39747^2 + 20818^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013213133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2013213133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013213113) 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, 277516 + ... + 284677.

It is an arithmetic number, because the mean of its divisors is an integer number (503444727).

Almost surely, 2^2013213133 is an apocalyptic number.

It is an amenable number.

2013213133 is a deficient number, since it is larger than the sum of its proper divisors (565775).

2013213133 is an equidigital number, since it uses as much as digits as its factorization.

2013213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565774.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2013213133 is about 44868.8436779911. The cubic root of 2013213133 is about 1262.6895461317.

Adding to 2013213133 its reverse (3313123102), we get a palindrome (5326336235).

The spelling of 2013213133 in words is "two billion, thirteen million, two hundred thirteen thousand, one hundred thirty-three".