120020242 has 4 divisors (see below), whose sum is σ = 180030366. Its totient is φ = 60010120.

The previous prime is 120020237. The next prime is 120020261. The reversal of 120020242 is 242020021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242020021 = 1669 ⋅145009.

It can be written as a sum of positive squares in only one way, i.e., 113614281 + 6405961 = 10659^2 + 2531^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30005059 + ... + 30005062.

Almost surely, 2^120020242 is an apocalyptic number.

120020242 is a deficient number, since it is larger than the sum of its proper divisors (60010124).

120020242 is an equidigital number, since it uses as much as digits as its factorization.

120020242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60010123.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 120020242 is about 10955.3750278117. The cubic root of 120020242 is about 493.2701472317.

Adding to 120020242 its reverse (242020021), we get a palindrome (362040263).

The spelling of 120020242 in words is "one hundred twenty million, twenty thousand, two hundred forty-two".