12031042 has 4 divisors (see below), whose sum is σ = 18046566. Its totient is φ = 6015520.

The previous prime is 12031039. The next prime is 12031049. The reversal of 12031042 is 24013021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24013021 = 1031 ⋅23291.

It can be written as a sum of positive squares in only one way, i.e., 11029041 + 1002001 = 3321^2 + 1001^2 .

It is not an unprimeable number, because it can be changed into a prime (12031049) 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 as a sum of consecutive naturals, namely, 3007759 + ... + 3007762.

Almost surely, 2^12031042 is an apocalyptic number.

12031042 is a deficient number, since it is larger than the sum of its proper divisors (6015524).

12031042 is an equidigital number, since it uses as much as digits as its factorization.

12031042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6015523.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12031042 is about 3468.5792480496. The cubic root of 12031042 is about 229.1400908613.

Adding to 12031042 its reverse (24013021), we get a palindrome (36044063).

The spelling of 12031042 in words is "twelve million, thirty-one thousand, forty-two".