120002321 has 4 divisors (see below), whose sum is σ = 120540672. Its totient is φ = 119463972.

The previous prime is 120002299. The next prime is 120002357. The reversal of 120002321 is 123200021.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 120002321 - 2⁶ = 120002257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120002021) 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, 268841 + ... + 269286.

It is an arithmetic number, because the mean of its divisors is an integer number (30135168).

Almost surely, 2^120002321 is an apocalyptic number.

It is an amenable number.

120002321 is a deficient number, since it is larger than the sum of its proper divisors (538351).

120002321 is an equidigital number, since it uses as much as digits as its factorization.

120002321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538350.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 120002321 is about 10954.5570882624. The cubic root of 120002321 is about 493.2455948890.

Adding to 120002321 its reverse (123200021), we get a palindrome (243202342).

The spelling of 120002321 in words is "one hundred twenty million, two thousand, three hundred twenty-one".