203030223 has 16 divisors (see below), whose sum is σ = 308157696. Its totient is φ = 117698240.

The previous prime is 203030203. The next prime is 203030239. The reversal of 203030223 is 322030302.

It is not a de Polignac number, because 203030223 - 2⁶ = 203030159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203030203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132990 + ... + 134507.

It is an arithmetic number, because the mean of its divisors is an integer number (19259856).

Almost surely, 2^203030223 is an apocalyptic number.

203030223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

203030223 is a deficient number, since it is larger than the sum of its proper divisors (105127473).

203030223 is a wasteful number, since it uses less digits than its factorization.

203030223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267534.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 203030223 is about 14248.8674286766. The cubic root of 203030223 is about 587.7422310616.

Adding to 203030223 its reverse (322030302), we get a palindrome (525060525).

The spelling of 203030223 in words is "two hundred three million, thirty thousand, two hundred twenty-three".