212231443320013 has 8 divisors (see below), whose sum is σ = 228557770806456. Its totient is φ = 195905234668800.

The previous prime is 212231443319953. The next prime is 212231443320019. The reversal of 212231443320013 is 310023344132212.

It can be written as a sum of positive squares in 4 ways, for example, as 42429616495204 + 169801826824809 = 6513802^2 + 13030803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212231443320013 - 2⁹ = 212231443319501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212231443320019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25982248 + ... + 33159313.

It is an arithmetic number, because the mean of its divisors is an integer number (28569721350807).

Almost surely, 2^{212231443320013} is an apocalyptic number.

It is an amenable number.

212231443320013 is a deficient number, since it is larger than the sum of its proper divisors (16326327486443).

212231443320013 is a wasteful number, since it uses less digits than its factorization.

212231443320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59417615.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 212231443320013 its reverse (310023344132212), we get a palindrome (522254787452225).

The spelling of 212231443320013 in words is "two hundred twelve trillion, two hundred thirty-one billion, four hundred forty-three million, three hundred twenty thousand, thirteen".