203243224220 has 24 divisors (see below), whose sum is σ = 426911588208. Its totient is φ = 81278086400.

The previous prime is 203243224213. The next prime is 203243224279. The reversal of 203243224220 is 22422342302.

It is a self number, because there is not a number n which added to its sum of digits gives 203243224220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1113266 + ... + 1282905.

It is an arithmetic number, because the mean of its divisors is an integer number (17787982842).

Almost surely, 2^203243224220 is an apocalyptic number.

203243224220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203243224220 is an abundant number, since it is smaller than the sum of its proper divisors (223668363988).

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

203243224220 is a wasteful number, since it uses less digits than its factorization.

203243224220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400421 (or 2400419 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 203243224220 its reverse (22422342302), we get a palindrome (225665566522).

The spelling of 203243224220 in words is "two hundred three billion, two hundred forty-three million, two hundred twenty-four thousand, two hundred twenty".