213320311213 has 4 divisors (see below), whose sum is σ = 213349729788. Its totient is φ = 213290892640.

The previous prime is 213320311207. The next prime is 213320311231. The reversal of 213320311213 is 312113023312.

213320311213 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 124946696484 + 88373614729 = 353478^2 + 297277^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213320311213 is a prime.

It is a super-2 number, since 2×213320311213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213320317213) 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, 14698408 + ... + 14712913.

It is an arithmetic number, because the mean of its divisors is an integer number (53337432447).

Almost surely, 2^213320311213 is an apocalyptic number.

It is an amenable number.

213320311213 is a deficient number, since it is larger than the sum of its proper divisors (29418575).

213320311213 is an equidigital number, since it uses as much as digits as its factorization.

213320311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29418574.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213320311213 its reverse (312113023312), we get a palindrome (525433334525).

The spelling of 213320311213 in words is "two hundred thirteen billion, three hundred twenty million, three hundred eleven thousand, two hundred thirteen".