120423042 has 12 divisors (see below), whose sum is σ = 260916630. Its totient is φ = 40141008.

The previous prime is 120423041. The next prime is 120423073. The reversal of 120423042 is 240324021.

It can be written as a sum of positive squares in only one way, i.e., 110061081 + 10361961 = 10491^2 + 3219^2 .

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: 6690169 = 120423042 / (1 + 2 + 0 + 4 + 2 + 3 + 0 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (120423041) 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 5 ways as a sum of consecutive naturals, for example, 3345067 + ... + 3345102.

Almost surely, 2^120423042 is an apocalyptic number.

120423042 is an abundant number, since it is smaller than the sum of its proper divisors (140493588).

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

120423042 is a wasteful number, since it uses less digits than its factorization.

120423042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6690177 (or 6690174 counting only the distinct ones).

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

The square root of 120423042 is about 10973.7432993487. The cubic root of 120423042 is about 493.8213524613.

Adding to 120423042 its reverse (240324021), we get a palindrome (360747063).

The spelling of 120423042 in words is "one hundred twenty million, four hundred twenty-three thousand, forty-two".