203130310220 has 24 divisors (see below), whose sum is σ = 426602577744. Its totient is φ = 81246614336.

The previous prime is 203130310211. The next prime is 203130310231. The reversal of 203130310220 is 22013031302.

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, 35282 + ... + 638361.

It is an arithmetic number, because the mean of its divisors is an integer number (17775107406).

Almost surely, 2^203130310220 is an apocalyptic number.

203130310220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203130310220 is an abundant number, since it is smaller than the sum of its proper divisors (223472267524).

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

203130310220 is a wasteful number, since it uses less digits than its factorization.

203130310220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688729 (or 688727 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 203130310220 its reverse (22013031302), we get a palindrome (225143341522).

The spelling of 203130310220 in words is "two hundred three billion, one hundred thirty million, three hundred ten thousand, two hundred twenty".