2143230503 has 4 divisors (see below), whose sum is σ = 2188831200. Its totient is φ = 2097629808.

The previous prime is 2143230499. The next prime is 2143230559. The reversal of 2143230503 is 3050323412.

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 2143230503 - 2² = 2143230499 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143230563) 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, 22800278 + ... + 22800371.

It is an arithmetic number, because the mean of its divisors is an integer number (547207800).

Almost surely, 2^2143230503 is an apocalyptic number.

2143230503 is a deficient number, since it is larger than the sum of its proper divisors (45600697).

2143230503 is an equidigital number, since it uses as much as digits as its factorization.

2143230503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45600696.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2143230503 is about 46295.0375634365. The cubic root of 2143230503 is about 1289.3068613717.

Adding to 2143230503 its reverse (3050323412), we get a palindrome (5193553915).

The spelling of 2143230503 in words is "two billion, one hundred forty-three million, two hundred thirty thousand, five hundred three".