43340432234221 has 12 divisors (see below), whose sum is σ = 44888402988000. Its totient is φ = 41844127207568.

The previous prime is 43340432234201. The next prime is 43340432234243. The reversal of 43340432234221 is 12243223404334.

It is not a de Polignac number, because 43340432234221 - 2²³ = 43340423845613 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 (43340432234201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18577350 + ... + 20779768.

It is an arithmetic number, because the mean of its divisors is an integer number (3740700249000).

Almost surely, 2^{43340432234221} is an apocalyptic number.

It is an amenable number.

43340432234221 is a deficient number, since it is larger than the sum of its proper divisors (1547970753779).

43340432234221 is a wasteful number, since it uses less digits than its factorization.

43340432234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225876 (or 2225847 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 37.

Adding to 43340432234221 its reverse (12243223404334), we get a palindrome (55583655638555).

The spelling of 43340432234221 in words is "forty-three trillion, three hundred forty billion, four hundred thirty-two million, two hundred thirty-four thousand, two hundred twenty-one".