120324561 has 8 divisors (see below), whose sum is σ = 183351744. Its totient is φ = 68756880.

The previous prime is 120324557. The next prime is 120324571. The reversal of 120324561 is 165423021.

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

It is not a de Polignac number, because 120324561 - 2² = 120324557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120324571) 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 in 7 ways as a sum of consecutive naturals, for example, 2864850 + ... + 2864891.

It is an arithmetic number, because the mean of its divisors is an integer number (22918968).

Almost surely, 2^120324561 is an apocalyptic number.

It is an amenable number.

120324561 is a deficient number, since it is larger than the sum of its proper divisors (63027183).

120324561 is an equidigital number, since it uses as much as digits as its factorization.

120324561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5729751.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 120324561 is about 10969.2552618671. The cubic root of 120324561 is about 493.6867013658.

Adding to 120324561 its reverse (165423021), we get a palindrome (285747582).

The spelling of 120324561 in words is "one hundred twenty million, three hundred twenty-four thousand, five hundred sixty-one".