212333323213 has 6 divisors (see below), whose sum is σ = 233391173582. Its totient is φ = 193030293720.

The previous prime is 212333323133. The next prime is 212333323219. The reversal of 212333323213 is 312323333212.

It can be written as a sum of positive squares in only one way, i.e., 167462645284 + 44870677929 = 409222^2 + 211827^2 .

It is not a de Polignac number, because 212333323213 - 2²¹ = 212331226061 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 (212333323219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 877410306 + ... + 877410547.

Almost surely, 2^212333323213 is an apocalyptic number.

It is an amenable number.

212333323213 is a deficient number, since it is larger than the sum of its proper divisors (21057850369).

212333323213 is a wasteful number, since it uses less digits than its factorization.

212333323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754820875 (or 1754820864 counting only the distinct ones).

The product of its digits is 11664, while the sum is 28.

Adding to 212333323213 its reverse (312323333212), we get a palindrome (524656656425).

Subtracting 212333323213 from its reverse (312323333212), we obtain a palindrome (99990009999).

The spelling of 212333323213 in words is "two hundred twelve billion, three hundred thirty-three million, three hundred twenty-three thousand, two hundred thirteen".