213231222242443 has 16 divisors (see below), whose sum is σ = 226223136747520. Its totient is φ = 200416255826976.

The previous prime is 213231222242431. The next prime is 213231222242471. The reversal of 213231222242443 is 344242222132312.

213231222242443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213231222242443 - 2⁹ = 213231222241931 is a prime.

It is a super-2 number, since 2×213231222242443² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213231222242413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370728280 + ... + 371303002.

It is an arithmetic number, because the mean of its divisors is an integer number (14138946046720).

Almost surely, 2^{213231222242443} is an apocalyptic number.

213231222242443 is a deficient number, since it is larger than the sum of its proper divisors (12991914505077).

213231222242443 is a wasteful number, since it uses less digits than its factorization.

213231222242443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728626.

The product of its digits is 221184, while the sum is 37.

Adding to 213231222242443 its reverse (344242222132312), we get a palindrome (557473444374755).

The spelling of 213231222242443 in words is "two hundred thirteen trillion, two hundred thirty-one billion, two hundred twenty-two million, two hundred forty-two thousand, four hundred forty-three".