12113042 has 18 divisors (see below), whose sum is σ = 19173063. Its totient is φ = 5739052.

The previous prime is 12112979. The next prime is 12113047. The reversal of 12113042 is 24031121.

It can be written as a sum of positive squares in only one way, i.e., 6056521 + 6056521 = 2461^2 + 2461^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2461.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12113047) 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 8 ways as a sum of consecutive naturals, for example, 113153 + ... + 113259.

Almost surely, 2^12113042 is an apocalyptic number.

12113042 is a deficient number, since it is larger than the sum of its proper divisors (7060021).

12113042 is an equidigital number, since it uses as much as digits as its factorization.

12113042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12113042 is about 3480.3795770002. The cubic root of 12113042 is about 229.6594961493.

Adding to 12113042 its reverse (24031121), we get a palindrome (36144163).

The spelling of 12113042 in words is "twelve million, one hundred thirteen thousand, forty-two".