12143430223 has 4 divisors (see below), whose sum is σ = 12144010120. Its totient is φ = 12142850328.

The previous prime is 12143430199. The next prime is 12143430241. The reversal of 12143430223 is 32203434121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12143430223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143430023) 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, 257313 + ... + 300826.

It is an arithmetic number, because the mean of its divisors is an integer number (3036002530).

Almost surely, 2^12143430223 is an apocalyptic number.

12143430223 is a deficient number, since it is larger than the sum of its proper divisors (579897).

12143430223 is an equidigital number, since it uses as much as digits as its factorization.

12143430223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579896.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12143430223 its reverse (32203434121), we get a palindrome (44346864344).

The spelling of 12143430223 in words is "twelve billion, one hundred forty-three million, four hundred thirty thousand, two hundred twenty-three".