120442142 has 4 divisors (see below), whose sum is σ = 180663216. Its totient is φ = 60221070.

The previous prime is 120442111. The next prime is 120442171. The reversal of 120442142 is 241244021.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30110534 + ... + 30110537.

It is an arithmetic number, because the mean of its divisors is an integer number (45165804).

Almost surely, 2^120442142 is an apocalyptic number.

120442142 is a deficient number, since it is larger than the sum of its proper divisors (60221074).

120442142 is an equidigital number, since it uses as much as digits as its factorization.

120442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60221073.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 120442142 is about 10974.6135239470. The cubic root of 120442142 is about 493.8474590078.

Adding to 120442142 its reverse (241244021), we get a palindrome (361686163).

The spelling of 120442142 in words is "one hundred twenty million, four hundred forty-two thousand, one hundred forty-two".