12143032434 has 32 divisors (see below), whose sum is σ = 29060250240. Its totient is φ = 3736317456.

The previous prime is 12143032393. The next prime is 12143032541. The reversal of 12143032434 is 43423034121.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12143032398 and 12143032407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8648182 + ... + 8649585.

It is an arithmetic number, because the mean of its divisors is an integer number (908132820).

Almost surely, 2^12143032434 is an apocalyptic number.

12143032434 is an abundant number, since it is smaller than the sum of its proper divisors (16917217806).

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

12143032434 is a wasteful number, since it uses less digits than its factorization.

12143032434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17297791 (or 17297785 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12143032434 its reverse (43423034121), we get a palindrome (55566066555).

The spelling of 12143032434 in words is "twelve billion, one hundred forty-three million, thirty-two thousand, four hundred thirty-four".