120442321 has 4 divisors (see below), whose sum is σ = 120968500. Its totient is φ = 119916144.

The previous prime is 120442261. The next prime is 120442337. The reversal of 120442321 is 123244021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123244021 = 67 ⋅1839463.

It can be written as a sum of positive squares in 2 ways, for example, as 117483921 + 2958400 = 10839^2 + 1720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120442321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120442351) 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, 262746 + ... + 263203.

It is an arithmetic number, because the mean of its divisors is an integer number (30242125).

Almost surely, 2^120442321 is an apocalyptic number.

It is an amenable number.

120442321 is a deficient number, since it is larger than the sum of its proper divisors (526179).

120442321 is an equidigital number, since it uses as much as digits as its factorization.

120442321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526178.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 120442321 is about 10974.6216791286. The cubic root of 120442321 is about 493.8477036582.

Adding to 120442321 its reverse (123244021), we get a palindrome (243686342).

It can be divided in two parts, 12044 and 2321, that added together give a triangular number (14365 = T₁₆₉).

The spelling of 120442321 in words is "one hundred twenty million, four hundred forty-two thousand, three hundred twenty-one".