32131230221 has 8 divisors (see below), whose sum is σ = 32289438720. Its totient is φ = 31973177808.

The previous prime is 32131230203. The next prime is 32131230227. The reversal of 32131230221 is 12203213123.

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

It is a cyclic number.

It is not a de Polignac number, because 32131230221 - 2¹⁴ = 32131213837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32131230193 and 32131230202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131230227) 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, 384980 + ... + 460946.

It is an arithmetic number, because the mean of its divisors is an integer number (4036179840).

Almost surely, 2^32131230221 is an apocalyptic number.

It is an amenable number.

32131230221 is a deficient number, since it is larger than the sum of its proper divisors (158208499).

32131230221 is a wasteful number, since it uses less digits than its factorization.

32131230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78043.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 32131230221 its reverse (12203213123), we get a palindrome (44334443344).

The spelling of 32131230221 in words is "thirty-two billion, one hundred thirty-one million, two hundred thirty thousand, two hundred twenty-one".