120305243 has 8 divisors (see below), whose sum is σ = 127494000. Its totient is φ = 113128960.

The previous prime is 120305221. The next prime is 120305257. The reversal of 120305243 is 342503021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120305243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120395243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23123 + ... + 27843.

It is an arithmetic number, because the mean of its divisors is an integer number (15936750).

Almost surely, 2^120305243 is an apocalyptic number.

120305243 is a deficient number, since it is larger than the sum of its proper divisors (7188757).

120305243 is a wasteful number, since it uses less digits than its factorization.

120305243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6237.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 120305243 is about 10968.3746744903. The cubic root of 120305243 is about 493.6602796332.

Adding to 120305243 its reverse (342503021), we get a palindrome (462808264).

The spelling of 120305243 in words is "one hundred twenty million, three hundred five thousand, two hundred forty-three".