203221230 has 32 divisors (see below), whose sum is σ = 516422304. Its totient is φ = 51004416.

The previous prime is 203221229. The next prime is 203221231. The reversal of 203221230 is 32122302.

It is an interprime number because it is at equal distance from previous prime (203221229) and next prime (203221231).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203221231) 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, 198727 + ... + 199746.

It is an arithmetic number, because the mean of its divisors is an integer number (16138197).

Almost surely, 2^203221230 is an apocalyptic number.

203221230 is an abundant number, since it is smaller than the sum of its proper divisors (313201074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203221230 is a wasteful number, since it uses less digits than its factorization.

203221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398500.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 203221230 is about 14255.5683857221. The cubic root of 203221230 is about 587.9264855568.

Adding to 203221230 its reverse (32122302), we get a palindrome (235343532).

The spelling of 203221230 in words is "two hundred three million, two hundred twenty-one thousand, two hundred thirty".