4109321 has 2 divisors, whose sum is σ = 4109322. Its totient is φ = 4109320.

The previous prime is 4109317. The next prime is 4109323. The reversal of 4109321 is 1239014.

4109321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3822025 + 287296 = 1955^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 4109321 - 2² = 4109317 is a prime.

Together with 4109323, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 4109293 and 4109302.

It is not a weakly prime, because it can be changed into another prime (4109323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2054660 + 2054661.

It is an arithmetic number, because the mean of its divisors is an integer number (2054661).

Almost surely, 2^4109321 is an apocalyptic number.

It is an amenable number.

4109321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4109321 is an equidigital number, since it uses as much as digits as its factorization.

4109321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 4109321 is about 2027.1460233540. The cubic root of 4109321 is about 160.1732628281.

It can be divided in two parts, 41093 and 21, that added together give a palindrome (41114).

The spelling of 4109321 in words is "four million, one hundred nine thousand, three hundred twenty-one".