120242142 has 12 divisors (see below), whose sum is σ = 260524680. Its totient is φ = 40080708.

The previous prime is 120242141. The next prime is 120242159. The reversal of 120242142 is 241242021.

120242142 is a `hidden beast` number, since 1 + 202 + 421 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6680119 = 120242142 / (1 + 2 + 0 + 2 + 4 + 2 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120242141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3340042 + ... + 3340077.

It is an arithmetic number, because the mean of its divisors is an integer number (21710390).

Almost surely, 2^120242142 is an apocalyptic number.

120242142 is an abundant number, since it is smaller than the sum of its proper divisors (140282538).

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

120242142 is a wasteful number, since it uses less digits than its factorization.

120242142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6680127 (or 6680124 counting only the distinct ones).

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

The square root of 120242142 is about 10965.4977999177. The cubic root of 120242142 is about 493.5739550355.

Adding to 120242142 its reverse (241242021), we get a palindrome (361484163).

The spelling of 120242142 in words is "one hundred twenty million, two hundred forty-two thousand, one hundred forty-two".