223203073 has 4 divisors (see below), whose sum is σ = 223416900. Its totient is φ = 222989248.

The previous prime is 223203059. The next prime is 223203107. The reversal of 223203073 is 370302322.

223203073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 215267584 + 7935489 = 14672^2 + 2817^2 .

It is a cyclic number.

It is not a de Polignac number, because 223203073 - 2⁵ = 223203041 is a prime.

It is a super-3 number, since 3×223203073³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223203023) 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, 105340 + ... + 107437.

It is an arithmetic number, because the mean of its divisors is an integer number (55854225).

Almost surely, 2^223203073 is an apocalyptic number.

It is an amenable number.

223203073 is a deficient number, since it is larger than the sum of its proper divisors (213827).

223203073 is a wasteful number, since it uses less digits than its factorization.

223203073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213826.

The product of its (nonzero) digits is 1512, while the sum is 22.

The square root of 223203073 is about 14939.9823627741. The cubic root of 223203073 is about 606.5967184109.

Adding to 223203073 its reverse (370302322), we get a palindrome (593505395).

The spelling of 223203073 in words is "two hundred twenty-three million, two hundred three thousand, seventy-three".