12143230203 has 32 divisors (see below), whose sum is σ = 18810501696. Its totient is φ = 6900461568.

The previous prime is 12143230171. The next prime is 12143230241. The reversal of 12143230203 is 30203234121.

It is not a de Polignac number, because 12143230203 - 2⁵ = 12143230171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12143230203.

It is not an unprimeable number, because it can be changed into a prime (12143230273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137650 + ... + 207927.

It is an arithmetic number, because the mean of its divisors is an integer number (587828178).

Almost surely, 2^12143230203 is an apocalyptic number.

12143230203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12143230203 is a deficient number, since it is larger than the sum of its proper divisors (6667271493).

12143230203 is a wasteful number, since it uses less digits than its factorization.

12143230203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345663.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12143230203 its reverse (30203234121), we get a palindrome (42346464324).

The spelling of 12143230203 in words is "twelve billion, one hundred forty-three million, two hundred thirty thousand, two hundred three".