120144042 has 48 divisors (see below), whose sum is σ = 281024640. Its totient is φ = 36982176.

The previous prime is 120144023. The next prime is 120144047. The reversal of 120144042 is 240441021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (120144047) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7003 + ... + 17009.

It is an arithmetic number, because the mean of its divisors is an integer number (5854680).

Almost surely, 2^120144042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120144042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140512320).

120144042 is an abundant number, since it is smaller than the sum of its proper divisors (160880598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120144042 is a wasteful number, since it uses less digits than its factorization.

120144042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10067 (or 10064 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 120144042 is about 10961.0237660540. The cubic root of 120144042 is about 493.4396904648.

Adding to 120144042 its reverse (240441021), we get a palindrome (360585063).

The spelling of 120144042 in words is "one hundred twenty million, one hundred forty-four thousand, forty-two".