32121323321 has 4 divisors (see below), whose sum is σ = 32121690612. Its totient is φ = 32120956032.

The previous prime is 32121323303. The next prime is 32121323341. The reversal of 32121323321 is 12332312123.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6381613225 + 25739710096 = 79885^2 + 160436^2 .

It is a cyclic number.

It is not a de Polignac number, because 32121323321 - 2⁶ = 32121323257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32121323341) 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, 31745 + ... + 255441.

It is an arithmetic number, because the mean of its divisors is an integer number (8030422653).

Almost surely, 2^32121323321 is an apocalyptic number.

It is an amenable number.

32121323321 is a deficient number, since it is larger than the sum of its proper divisors (367291).

32121323321 is a wasteful number, since it uses less digits than its factorization.

32121323321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367290.

The product of its digits is 1296, while the sum is 23.

Adding to 32121323321 its reverse (12332312123), we get a palindrome (44453635444).

The spelling of 32121323321 in words is "thirty-two billion, one hundred twenty-one million, three hundred twenty-three thousand, three hundred twenty-one".