120042423 has 24 divisors (see below), whose sum is σ = 184013856. Its totient is φ = 75148800.

The previous prime is 120042401. The next prime is 120042427. The reversal of 120042423 is 324240021.

120042423 is a `hidden beast` number, since 1 + 200 + 42 + 423 = 666.

It is not a de Polignac number, because 120042423 - 2¹³ = 120034231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120042396 and 120042405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120042427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115918 + ... + 116948.

It is an arithmetic number, because the mean of its divisors is an integer number (7667244).

Almost surely, 2^120042423 is an apocalyptic number.

120042423 is a deficient number, since it is larger than the sum of its proper divisors (63971433).

120042423 is a wasteful number, since it uses less digits than its factorization.

120042423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815 (or 1812 counting only the distinct ones).

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

The square root of 120042423 is about 10956.3873151692. The cubic root of 120042423 is about 493.3005325262.

Adding to 120042423 its reverse (324240021), we get a palindrome (444282444).

The spelling of 120042423 in words is "one hundred twenty million, forty-two thousand, four hundred twenty-three".