120342242 has 4 divisors (see below), whose sum is σ = 180513366. Its totient is φ = 60171120.

The previous prime is 120342239. The next prime is 120342253. The reversal of 120342242 is 242243021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242243021 = 31 ⋅7814291.

It can be written as a sum of positive squares in only one way, i.e., 118831801 + 1510441 = 10901^2 + 1229^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30085559 + ... + 30085562.

Almost surely, 2^120342242 is an apocalyptic number.

120342242 is a deficient number, since it is larger than the sum of its proper divisors (60171124).

120342242 is an equidigital number, since it uses as much as digits as its factorization.

120342242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60171123.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 120342242 is about 10970.0611666481. The cubic root of 120342242 is about 493.7108816522.

Adding to 120342242 its reverse (242243021), we get a palindrome (362585263).

The spelling of 120342242 in words is "one hundred twenty million, three hundred forty-two thousand, two hundred forty-two".