223203243 has 4 divisors (see below), whose sum is σ = 297604328. Its totient is φ = 148802160.

The previous prime is 223203229. The next prime is 223203257. The reversal of 223203243 is 342302322.

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

It is an interprime number because it is at equal distance from previous prime (223203229) and next prime (223203257).

It is not a de Polignac number, because 223203243 - 2⁶ = 223203179 is a prime.

It is a super-3 number, since 3×223203243³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223203443) 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, 37200538 + ... + 37200543.

It is an arithmetic number, because the mean of its divisors is an integer number (74401082).

Almost surely, 2^223203243 is an apocalyptic number.

223203243 is a deficient number, since it is larger than the sum of its proper divisors (74401085).

223203243 is an equidigital number, since it uses as much as digits as its factorization.

223203243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74401084.

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

The square root of 223203243 is about 14939.9880522041. The cubic root of 223203243 is about 606.5968724133.

Adding to 223203243 its reverse (342302322), we get a palindrome (565505565).

It can be divided in two parts, 223203 and 243, that added together give a triangular number (223446 = T₆₆₈).

The spelling of 223203243 in words is "two hundred twenty-three million, two hundred three thousand, two hundred forty-three".