4120321 has 4 divisors (see below), whose sum is σ = 4337200. Its totient is φ = 3903444.

The previous prime is 4120313. The next prime is 4120331. The reversal of 4120321 is 1230214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1230214 = 2 ⋅615107.

It is a cyclic number.

It is not a de Polignac number, because 4120321 - 2³ = 4120313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4120301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108411 + ... + 108448.

It is an arithmetic number, because the mean of its divisors is an integer number (1084300).

Almost surely, 2^4120321 is an apocalyptic number.

It is an amenable number.

4120321 is a deficient number, since it is larger than the sum of its proper divisors (216879).

4120321 is a wasteful number, since it uses less digits than its factorization.

4120321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216878.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4120321 is about 2029.8573841529. The cubic root of 4120321 is about 160.3160549593.

Adding to 4120321 its reverse (1230214), we get a palindrome (5350535).

The spelling of 4120321 in words is "four million, one hundred twenty thousand, three hundred twenty-one".