2143204223 has 4 divisors (see below), whose sum is σ = 2144845320. Its totient is φ = 2141563128.

The previous prime is 2143204201. The next prime is 2143204289. The reversal of 2143204223 is 3224023412.

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 2143204223 - 2⁶ = 2143204159 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 (2143206223) 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, 818588 + ... + 821201.

It is an arithmetic number, because the mean of its divisors is an integer number (536211330).

Almost surely, 2^2143204223 is an apocalyptic number.

2143204223 is a deficient number, since it is larger than the sum of its proper divisors (1641097).

2143204223 is a wasteful number, since it uses less digits than its factorization.

2143204223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641096.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2143204223 is about 46294.7537308495. The cubic root of 2143204223 is about 1289.3015915818.

Adding to 2143204223 its reverse (3224023412), we get a palindrome (5367227635).

The spelling of 2143204223 in words is "two billion, one hundred forty-three million, two hundred four thousand, two hundred twenty-three".