12312042 has 16 divisors (see below), whose sum is σ = 24777120. Its totient is φ = 4078512.

The previous prime is 12312031. The next prime is 12312043. The reversal of 12312042 is 24021321.

It is not an unprimeable number, because it can be changed into a prime (12312043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5317 + ... + 7272.

It is an arithmetic number, because the mean of its divisors is an integer number (1548570).

Almost surely, 2^12312042 is an apocalyptic number.

12312042 is an abundant number, since it is smaller than the sum of its proper divisors (12465078).

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

12312042 is a wasteful number, since it uses less digits than its factorization.

12312042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12757.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12312042 is about 3508.8519489998. The cubic root of 12312042 is about 230.9103304446.

Adding to 12312042 its reverse (24021321), we get a palindrome (36333363).

The spelling of 12312042 in words is "twelve million, three hundred twelve thousand, forty-two".