203411220 has 48 divisors (see below), whose sum is σ = 589196160. Its totient is φ = 52372096.

The previous prime is 203411213. The next prime is 203411261. The reversal of 203411220 is 22114302.

203411220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203411220² = 82752248843776800, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 203411220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56712 + ... + 60191.

It is an arithmetic number, because the mean of its divisors is an integer number (12274920).

Almost surely, 2^203411220 is an apocalyptic number.

203411220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203411220 is an abundant number, since it is smaller than the sum of its proper divisors (385784940).

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

203411220 is a wasteful number, since it uses less digits than its factorization.

203411220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116944 (or 116942 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 203411220 is about 14262.2305408376. The cubic root of 203411220 is about 588.1096445077.

Adding to 203411220 its reverse (22114302), we get a palindrome (225525522).

The spelling of 203411220 in words is "two hundred three million, four hundred eleven thousand, two hundred twenty".