12143043012 has 12 divisors (see below), whose sum is σ = 28333767056. Its totient is φ = 4047681000.

The previous prime is 12143043001. The next prime is 12143043041. The reversal of 12143043012 is 21034034121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12143043012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505960114 + ... + 505960137.

Almost surely, 2^12143043012 is an apocalyptic number.

12143043012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12143043012 is an abundant number, since it is smaller than the sum of its proper divisors (16190724044).

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

12143043012 is a wasteful number, since it uses less digits than its factorization.

12143043012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011920258 (or 1011920256 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12143043012 its reverse (21034034121), we get a palindrome (33177077133).

The spelling of 12143043012 in words is "twelve billion, one hundred forty-three million, forty-three thousand, twelve".