12143012 has 12 divisors (see below), whose sum is σ = 24286080. Its totient is φ = 5204136.

The previous prime is 12143009. The next prime is 12143017. The reversal of 12143012 is 21034121.

12143012 is an admirable number.

It is a super-3 number, since 3×12143012³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12143017) 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 3 ways as a sum of consecutive naturals, for example, 216812 + ... + 216867.

It is an arithmetic number, because the mean of its divisors is an integer number (2023840).

Almost surely, 2^12143012 is an apocalyptic number.

It is an amenable number.

12143012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12143012 is a wasteful number, since it uses less digits than its factorization.

12143012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433690 (or 433688 counting only the distinct ones).

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

The square root of 12143012 is about 3484.6824819487. The cubic root of 12143012 is about 229.8487474360.

Adding to 12143012 its reverse (21034121), we get a palindrome (33177133).

The spelling of 12143012 in words is "twelve million, one hundred forty-three thousand, twelve".