2143204203 has 16 divisors (see below), whose sum is σ = 3268874240. Its totient is φ = 1223548416.

The previous prime is 2143204201. The next prime is 2143204289. The reversal of 2143204203 is 3024023412.

It is not a de Polignac number, because 2143204203 - 2¹ = 2143204201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143204203.

It is not an unprimeable number, because it can be changed into a prime (2143204201) 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 15 ways as a sum of consecutive naturals, for example, 24118 + ... + 69771.

It is an arithmetic number, because the mean of its divisors is an integer number (204304640).

Almost surely, 2^2143204203 is an apocalyptic number.

2143204203 is a deficient number, since it is larger than the sum of its proper divisors (1125670037).

2143204203 is a wasteful number, since it uses less digits than its factorization.

2143204203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94986.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2143204203 is about 46294.7535148423. The cubic root of 2143204203 is about 1289.3015875713.

Adding to 2143204203 its reverse (3024023412), we get a palindrome (5167227615).

The spelling of 2143204203 in words is "two billion, one hundred forty-three million, two hundred four thousand, two hundred three".