203030101220 has 12 divisors (see below), whose sum is σ = 426363212604. Its totient is φ = 81212040480.

The previous prime is 203030101163. The next prime is 203030101271. The reversal of 203030101220 is 22101030302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38925711616 + 164104389604 = 197296^2 + 405098^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203030101195 and 203030101204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5075752511 + ... + 5075752550.

It is an arithmetic number, because the mean of its divisors is an integer number (35530267717).

Almost surely, 2^203030101220 is an apocalyptic number.

203030101220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203030101220 is an abundant number, since it is smaller than the sum of its proper divisors (223333111384).

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

203030101220 is a wasteful number, since it uses less digits than its factorization.

203030101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151505070 (or 10151505068 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 203030101220 its reverse (22101030302), we get a palindrome (225131131522).

The spelling of 203030101220 in words is "two hundred three billion, thirty million, one hundred one thousand, two hundred twenty".