43240443321 has 8 divisors (see below), whose sum is σ = 57927166624. Its totient is φ = 28690341120.

The previous prime is 43240443299. The next prime is 43240443343. The reversal of 43240443321 is 12334404234.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (43240443299) and next prime (43240443343).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43240443321 - 2¹⁵ = 43240410553 is a prime.

It is a super-2 number, since 2×43240443321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43240443361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34154536 + ... + 34155801.

It is an arithmetic number, because the mean of its divisors is an integer number (7240895828).

Almost surely, 2^43240443321 is an apocalyptic number.

It is an amenable number.

43240443321 is a deficient number, since it is larger than the sum of its proper divisors (14686723303).

43240443321 is a wasteful number, since it uses less digits than its factorization.

43240443321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68310551.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 43240443321 its reverse (12334404234), we get a palindrome (55574847555).

The spelling of 43240443321 in words is "forty-three billion, two hundred forty million, four hundred forty-three thousand, three hundred twenty-one".