120243042 has 20 divisors (see below), whose sum is σ = 269433846. Its totient is φ = 40080960.

The previous prime is 120243031. The next prime is 120243107. The reversal of 120243042 is 240342021.

It can be written as a sum of positive squares in only one way, i.e., 118396161 + 1846881 = 10881^2 + 1359^2 .

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

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 9 ways as a sum of consecutive naturals, for example, 370959 + ... + 371282.

Almost surely, 2^120243042 is an apocalyptic number.

120243042 is an abundant number, since it is smaller than the sum of its proper divisors (149190804).

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

120243042 is an equidigital number, since it uses as much as digits as its factorization.

120243042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742255 (or 742246 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 120243042 is about 10965.5388376495. The cubic root of 120243042 is about 493.5751864824.

Adding to 120243042 its reverse (240342021), we get a palindrome (360585063).

It can be divided in two parts, 1202 and 43042, that added together give a palindrome (44244).

The spelling of 120243042 in words is "one hundred twenty million, two hundred forty-three thousand, forty-two".