43243334221 has 8 divisors (see below), whose sum is σ = 45556122080. Its totient is φ = 40934228688.

The previous prime is 43243334219. The next prime is 43243334237. The reversal of 43243334221 is 12243334234.

It is a happy number.

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 43243334221 - 2¹ = 43243334219 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 (43243334201) 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, 896451 + ... + 943456.

It is an arithmetic number, because the mean of its divisors is an integer number (5694515260).

Almost surely, 2^43243334221 is an apocalyptic number.

It is an amenable number.

43243334221 is a deficient number, since it is larger than the sum of its proper divisors (2312787859).

43243334221 is a wasteful number, since it uses less digits than its factorization.

43243334221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841163.

The product of its digits is 41472, while the sum is 31.

Adding to 43243334221 its reverse (12243334234), we get a palindrome (55486668455).

The spelling of 43243334221 in words is "forty-three billion, two hundred forty-three million, three hundred thirty-four thousand, two hundred twenty-one".