212334043213 has 4 divisors (see below), whose sum is σ = 212334975900. Its totient is φ = 212333110528.

The previous prime is 212334043157. The next prime is 212334043219. The reversal of 212334043213 is 312340433212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 63162747684 + 149171295529 = 251322^2 + 386227^2 .

It is a cyclic number.

It is not a de Polignac number, because 212334043213 - 2²⁵ = 212300488781 is a prime.

It is a super-3 number, since 3×212334043213³ (a number of 35 digits) contains 333 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 (212334043219) 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, 125613 + ... + 663661.

It is an arithmetic number, because the mean of its divisors is an integer number (53083743975).

Almost surely, 2^212334043213 is an apocalyptic number.

It is an amenable number.

212334043213 is a deficient number, since it is larger than the sum of its proper divisors (932687).

212334043213 is an equidigital number, since it uses as much as digits as its factorization.

212334043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932686.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 212334043213 its reverse (312340433212), we get a palindrome (524674476425).

The spelling of 212334043213 in words is "two hundred twelve billion, three hundred thirty-four million, forty-three thousand, two hundred thirteen".