120042340218 has 24 divisors (see below), whose sum is σ = 269060418900. Its totient is φ = 38634316224.

The previous prime is 120042340217. The next prime is 120042340259. The reversal of 120042340218 is 812043240021.

120042340218 is a `hidden beast` number, since 1 + 20 + 0 + 423 + 4 + 0 + 218 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 113216771529 + 6825568689 = 336477^2 + 82617^2 .

It is a junction number, because it is equal to n+sod(n) for n = 120042340191 and 120042340200.

It is not an unprimeable number, because it can be changed into a prime (120042340217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114982563 + ... + 114983606.

Almost surely, 2^120042340218 is an apocalyptic number.

120042340218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

120042340218 is an abundant number, since it is smaller than the sum of its proper divisors (149018078682).

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

120042340218 is a wasteful number, since it uses less digits than its factorization.

120042340218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229966206 (or 229966203 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 120042340218 its reverse (812043240021), we get a palindrome (932085580239).

The spelling of 120042340218 in words is "one hundred twenty billion, forty-two million, three hundred forty thousand, two hundred eighteen".