223243203 has 4 divisors (see below), whose sum is σ = 297657608. Its totient is φ = 148828800.

The previous prime is 223243187. The next prime is 223243211. The reversal of 223243203 is 302342322.

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

It is not a de Polignac number, because 223243203 - 2⁴ = 223243187 is a prime.

It is a super-3 number, since 3×223243203³ (a number of 26 digits) contains 333 as substring.

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 223243203.

It is not an unprimeable number, because it can be changed into a prime (223243003) 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, 37207198 + ... + 37207203.

It is an arithmetic number, because the mean of its divisors is an integer number (74414402).

Almost surely, 2^223243203 is an apocalyptic number.

223243203 is a deficient number, since it is larger than the sum of its proper divisors (74414405).

223243203 is an equidigital number, since it uses as much as digits as its factorization.

223243203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74414404.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 223243203 is about 14941.3253428202. The cubic root of 223243203 is about 606.6330698632.

Adding to 223243203 its reverse (302342322), we get a palindrome (525585525).

It can be divided in two parts, 223243 and 203, that added together give a triangular number (223446 = T₆₆₈).

The spelling of 223243203 in words is "two hundred twenty-three million, two hundred forty-three thousand, two hundred three".