12143444312 has 16 divisors (see below), whose sum is σ = 23967324600. Its totient is φ = 5752157760.

The previous prime is 12143444281. The next prime is 12143444353. The reversal of 12143444312 is 21344434121.

It is a congruent number.

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, 39945389 + ... + 39945692.

Almost surely, 2^12143444312 is an apocalyptic number.

It is an amenable number.

12143444312 is a deficient number, since it is larger than the sum of its proper divisors (11823880288).

12143444312 is a wasteful number, since it uses less digits than its factorization.

12143444312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79891106 (or 79891102 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

Adding to 12143444312 its reverse (21344434121), we get a palindrome (33487878433).

The spelling of 12143444312 in words is "twelve billion, one hundred forty-three million, four hundred forty-four thousand, three hundred twelve".