32443242421 has 4 divisors (see below), whose sum is σ = 32490744192. Its totient is φ = 32395740652.

The previous prime is 32443242371. The next prime is 32443242427. The reversal of 32443242421 is 12424234423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32443242421 - 2¹⁵ = 32443209653 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 (32443242427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23749861 + ... + 23751226.

It is an arithmetic number, because the mean of its divisors is an integer number (8122686048).

Almost surely, 2^32443242421 is an apocalyptic number.

It is an amenable number.

32443242421 is a deficient number, since it is larger than the sum of its proper divisors (47501771).

32443242421 is an equidigital number, since it uses as much as digits as its factorization.

32443242421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47501770.

The product of its digits is 36864, while the sum is 31.

Adding to 32443242421 its reverse (12424234423), we get a palindrome (44867476844).

The spelling of 32443242421 in words is "thirty-two billion, four hundred forty-three million, two hundred forty-two thousand, four hundred twenty-one".