120111442 has 16 divisors (see below), whose sum is σ = 199036800. Its totient is φ = 53904240.

The previous prime is 120111389. The next prime is 120111457. The reversal of 120111442 is 244111021.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32817 + ... + 36292.

It is an arithmetic number, because the mean of its divisors is an integer number (12439800).

Almost surely, 2^120111442 is an apocalyptic number.

120111442 is a deficient number, since it is larger than the sum of its proper divisors (78925358).

120111442 is a wasteful number, since it uses less digits than its factorization.

120111442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69201.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 120111442 is about 10959.5365777938. The cubic root of 120111442 is about 493.3950562940.

Adding to 120111442 its reverse (244111021), we get a palindrome (364222463).

The spelling of 120111442 in words is "one hundred twenty million, one hundred eleven thousand, four hundred forty-two".