12143531443 has 4 divisors (see below), whose sum is σ = 12857856840. Its totient is φ = 11429206048.

The previous prime is 12143531437. The next prime is 12143531447. The reversal of 12143531443 is 34413534121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12143531443 - 2¹³ = 12143523251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12143531447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357162673 + ... + 357162706.

It is an arithmetic number, because the mean of its divisors is an integer number (3214464210).

Almost surely, 2^12143531443 is an apocalyptic number.

12143531443 is a deficient number, since it is larger than the sum of its proper divisors (714325397).

12143531443 is an equidigital number, since it uses as much as digits as its factorization.

12143531443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714325396.

The product of its digits is 17280, while the sum is 31.

The spelling of 12143531443 in words is "twelve billion, one hundred forty-three million, five hundred thirty-one thousand, four hundred forty-three".