212004311213 has 4 divisors (see below), whose sum is σ = 217734157500. Its totient is φ = 206274464928.

The previous prime is 212004311203. The next prime is 212004311237. The reversal of 212004311213 is 312113400212.

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 203200805284 + 8803505929 = 450778^2 + 93827^2 .

It is a cyclic number.

It is not a de Polignac number, because 212004311213 - 2³⁶ = 143284834477 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 (212004311203) 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, 2864923088 + ... + 2864923161.

It is an arithmetic number, because the mean of its divisors is an integer number (54433539375).

Almost surely, 2^212004311213 is an apocalyptic number.

It is an amenable number.

212004311213 is a deficient number, since it is larger than the sum of its proper divisors (5729846287).

212004311213 is an equidigital number, since it uses as much as digits as its factorization.

212004311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5729846286.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 212004311213 its reverse (312113400212), we get a palindrome (524117711425).

The spelling of 212004311213 in words is "two hundred twelve billion, four million, three hundred eleven thousand, two hundred thirteen".