120344566 has 4 divisors (see below), whose sum is σ = 180516852. Its totient is φ = 60172282.

The previous prime is 120344563. The next prime is 120344599. The reversal of 120344566 is 665443021.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120344561) 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 as a sum of consecutive naturals, namely, 30086140 + ... + 30086143.

It is an arithmetic number, because the mean of its divisors is an integer number (45129213).

Almost surely, 2^120344566 is an apocalyptic number.

120344566 is a deficient number, since it is larger than the sum of its proper divisors (60172286).

120344566 is an equidigital number, since it uses as much as digits as its factorization.

120344566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60172285.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 120344566 is about 10970.1670907967. The cubic root of 120344566 is about 493.7140597458.

Adding to 120344566 its reverse (665443021), we get a palindrome (785787587).

The spelling of 120344566 in words is "one hundred twenty million, three hundred forty-four thousand, five hundred sixty-six".