32023031221 has 2 divisors, whose sum is σ = 32023031222. Its totient is φ = 32023031220.

The previous prime is 32023031203. The next prime is 32023031231. The reversal of 32023031221 is 12213032023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26122640625 + 5900390596 = 161625^2 + 76814^2 .

It is an emirp because it is prime and its reverse (12213032023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32023031221 - 2¹⁵ = 32022998453 is a prime.

It is a super-2 number, since 2×32023031221² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32023031231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16011515610 + 16011515611.

It is an arithmetic number, because the mean of its divisors is an integer number (16011515611).

Almost surely, 2^32023031221 is an apocalyptic number.

It is an amenable number.

32023031221 is a deficient number, since it is larger than the sum of its proper divisors (1).

32023031221 is an equidigital number, since it uses as much as digits as its factorization.

32023031221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 32023031221 its reverse (12213032023), we get a palindrome (44236063244).

The spelling of 32023031221 in words is "thirty-two billion, twenty-three million, thirty-one thousand, two hundred twenty-one".