212303323213 has 4 divisors (see below), whose sum is σ = 213214496508. Its totient is φ = 211392149920.

The previous prime is 212303323181. The next prime is 212303323229. The reversal of 212303323213 is 312323303212.

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 130116754089 + 82186569124 = 360717^2 + 286682^2 .

It is a cyclic number.

It is not a de Polignac number, because 212303323213 - 2⁵ = 212303323181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212303323273) 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, 455586298 + ... + 455586763.

It is an arithmetic number, because the mean of its divisors is an integer number (53303624127).

Almost surely, 2^212303323213 is an apocalyptic number.

It is an amenable number.

212303323213 is a deficient number, since it is larger than the sum of its proper divisors (911173295).

212303323213 is an equidigital number, since it uses as much as digits as its factorization.

212303323213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911173294.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 212303323213 its reverse (312323303212), we get a palindrome (524626626425).

The spelling of 212303323213 in words is "two hundred twelve billion, three hundred three million, three hundred twenty-three thousand, two hundred thirteen".