32031324221 has 4 divisors (see below), whose sum is σ = 34495272252. Its totient is φ = 29567376192.

The previous prime is 32031324217. The next prime is 32031324223. The reversal of 32031324221 is 12242313023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1366411225 + 30664912996 = 36965^2 + 175114^2 .

It is a cyclic number.

It is not a de Polignac number, because 32031324221 - 2² = 32031324217 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 (32031324223) 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, 1231973996 + ... + 1231974021.

It is an arithmetic number, because the mean of its divisors is an integer number (8623818063).

Almost surely, 2^32031324221 is an apocalyptic number.

It is an amenable number.

32031324221 is a deficient number, since it is larger than the sum of its proper divisors (2463948031).

32031324221 is a wasteful number, since it uses less digits than its factorization.

32031324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463948030.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 32031324221 its reverse (12242313023), we get a palindrome (44273637244).

The spelling of 32031324221 in words is "thirty-two billion, thirty-one million, three hundred twenty-four thousand, two hundred twenty-one".