12143131432 has 32 divisors (see below), whose sum is σ = 22858905600. Its totient is φ = 6047469504.

The previous prime is 12143131393. The next prime is 12143131463. The reversal of 12143131432 is 23413134121.

It is a junction number, because it is equal to n+sod(n) for n = 12143131397 and 12143131406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2684869 + ... + 2689387.

It is an arithmetic number, because the mean of its divisors is an integer number (714340800).

Almost surely, 2^12143131432 is an apocalyptic number.

It is an amenable number.

12143131432 is a deficient number, since it is larger than the sum of its proper divisors (10715774168).

12143131432 is a wasteful number, since it uses less digits than its factorization.

12143131432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5785 (or 5781 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

Adding to 12143131432 its reverse (23413134121), we get a palindrome (35556265553).

The spelling of 12143131432 in words is "twelve billion, one hundred forty-three million, one hundred thirty-one thousand, four hundred thirty-two".