213421344412 has 24 divisors (see below), whose sum is σ = 373809875600. Its totient is φ = 106618571136.

The previous prime is 213421344377. The next prime is 213421344413. The reversal of 213421344412 is 214443124312.

It is a happy number.

213421344412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213421344413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41738368 + ... + 41743480.

Almost surely, 2^213421344412 is an apocalyptic number.

It is an amenable number.

213421344412 is a deficient number, since it is larger than the sum of its proper divisors (160388531188).

213421344412 is a wasteful number, since it uses less digits than its factorization.

213421344412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12085 (or 12083 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

Adding to 213421344412 its reverse (214443124312), we get a palindrome (427864468724).

The spelling of 213421344412 in words is "two hundred thirteen billion, four hundred twenty-one million, three hundred forty-four thousand, four hundred twelve".