43442342321 has 8 divisors (see below), whose sum is σ = 49922693184. Its totient is φ = 37030566960.

The previous prime is 43442342261. The next prime is 43442342327. The reversal of 43442342321 is 12324324434.

43442342321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43442342321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43442342327) 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, 17142515 + ... + 17145048.

It is an arithmetic number, because the mean of its divisors is an integer number (6240336648).

Almost surely, 2^43442342321 is an apocalyptic number.

It is an amenable number.

43442342321 is a deficient number, since it is larger than the sum of its proper divisors (6480350863).

43442342321 is a wasteful number, since it uses less digits than its factorization.

43442342321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34287751.

The product of its digits is 55296, while the sum is 32.

Adding to 43442342321 its reverse (12324324434), we get a palindrome (55766666755).

The spelling of 43442342321 in words is "forty-three billion, four hundred forty-two million, three hundred forty-two thousand, three hundred twenty-one".