120424321 has 8 divisors (see below), whose sum is σ = 123669504. Its totient is φ = 117215280.

The previous prime is 120424319. The next prime is 120424349. The reversal of 120424321 is 123424021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120424321 - 2¹ = 120424319 is a prime.

It is a super-2 number, since 2×120424321² = 29004034176622082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120424351) 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 7 ways as a sum of consecutive naturals, for example, 2215 + ... + 15676.

It is an arithmetic number, because the mean of its divisors is an integer number (15458688).

Almost surely, 2^120424321 is an apocalyptic number.

It is an amenable number.

120424321 is a deficient number, since it is larger than the sum of its proper divisors (3245183).

120424321 is a wasteful number, since it uses less digits than its factorization.

120424321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18071.

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

The square root of 120424321 is about 10973.8015746595. The cubic root of 120424321 is about 493.8231007294.

Adding to 120424321 its reverse (123424021), we get a palindrome (243848342).

The spelling of 120424321 in words is "one hundred twenty million, four hundred twenty-four thousand, three hundred twenty-one".