43221432352213 has 8 divisors (see below), whose sum is σ = 45785365064280. Its totient is φ = 40659888030720.

The previous prime is 43221432352177. The next prime is 43221432352261. The reversal of 43221432352213 is 31225323412234.

It can be written as a sum of positive squares in 4 ways, for example, as 4837435139889 + 38383997212324 = 2199417^2 + 6195482^2 .

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 43221432352213 - 2⁴⁵ = 8037060263381 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 (43221432352283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597060378 + ... + 597132763.

It is an arithmetic number, because the mean of its divisors is an integer number (5723170633035).

Almost surely, 2^{43221432352213} is an apocalyptic number.

It is an amenable number.

43221432352213 is a deficient number, since it is larger than the sum of its proper divisors (2563932712067).

43221432352213 is a wasteful number, since it uses less digits than its factorization.

43221432352213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194195287.

The product of its digits is 207360, while the sum is 37.

Adding to 43221432352213 its reverse (31225323412234), we get a palindrome (74446755764447).

The spelling of 43221432352213 in words is "forty-three trillion, two hundred twenty-one billion, four hundred thirty-two million, three hundred fifty-two thousand, two hundred thirteen".