12120042 has 16 divisors (see below), whose sum is σ = 26443872. Its totient is φ = 3672720.

The previous prime is 12120019. The next prime is 12120047. The reversal of 12120042 is 24002121.

It is not an unprimeable number, because it can be changed into a prime (12120047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91753 + ... + 91884.

It is an arithmetic number, because the mean of its divisors is an integer number (1652742).

Almost surely, 2^12120042 is an apocalyptic number.

12120042 is an abundant number, since it is smaller than the sum of its proper divisors (14323830).

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

12120042 is a wasteful number, since it uses less digits than its factorization.

12120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183653.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12120042 is about 3481.3850691930. The cubic root of 12120042 is about 229.7037269021.

Adding to 12120042 its reverse (24002121), we get a palindrome (36122163).

The spelling of 12120042 in words is "twelve million, one hundred twenty thousand, forty-two".