120004042 has 4 divisors (see below), whose sum is σ = 180006066. Its totient is φ = 60002020.

The previous prime is 120004039. The next prime is 120004091. The reversal of 120004042 is 240400021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240400021 = 223 ⋅1078027.

It can be written as a sum of positive squares in only one way, i.e., 119443041 + 561001 = 10929^2 + 749^2 .

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, 30001009 + ... + 30001012.

Almost surely, 2^120004042 is an apocalyptic number.

120004042 is a deficient number, since it is larger than the sum of its proper divisors (60002024).

120004042 is an equidigital number, since it uses as much as digits as its factorization.

120004042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60002023.

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

The square root of 120004042 is about 10954.6356397646. The cubic root of 120004042 is about 493.2479528201.

Adding to 120004042 its reverse (240400021), we get a palindrome (360404063).

The spelling of 120004042 in words is "one hundred twenty million, four thousand, forty-two".