201030223 has 4 divisors (see below), whose sum is σ = 201070288. Its totient is φ = 200990160.

The previous prime is 201030199. The next prime is 201030227. The reversal of 201030223 is 322030102.

It is a happy number.

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 201030223 - 2²¹ = 198933071 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 (201030227) 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, 11211 + ... + 22972.

It is an arithmetic number, because the mean of its divisors is an integer number (50267572).

Almost surely, 2^201030223 is an apocalyptic number.

201030223 is a deficient number, since it is larger than the sum of its proper divisors (40065).

201030223 is an equidigital number, since it uses as much as digits as its factorization.

201030223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40064.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 201030223 is about 14178.5127217209. The cubic root of 201030223 is about 585.8059585386.

Adding to 201030223 its reverse (322030102), we get a palindrome (523060325).

The spelling of 201030223 in words is "two hundred one million, thirty thousand, two hundred twenty-three".