120331142 has 16 divisors (see below), whose sum is σ = 190436400. Its totient is φ = 56867040.

The previous prime is 120331109. The next prime is 120331171. The reversal of 120331142 is 241133021.

It is a self number, because there is not a number n which added to its sum of digits gives 120331142.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 14084 + ... + 20952.

It is an arithmetic number, because the mean of its divisors is an integer number (11902275).

Almost surely, 2^120331142 is an apocalyptic number.

120331142 is a deficient number, since it is larger than the sum of its proper divisors (70105258).

120331142 is a wasteful number, since it uses less digits than its factorization.

120331142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7351.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 120331142 is about 10969.5552325516. Note that the first 3 decimals coincide. The cubic root of 120331142 is about 493.6957017254.

Adding to 120331142 its reverse (241133021), we get a palindrome (361464163).

The spelling of 120331142 in words is "one hundred twenty million, three hundred thirty-one thousand, one hundred forty-two".