203143011201220 has 48 divisors (see below), whose sum is σ = 426911492044800. Its totient is φ = 81197938200960.

The previous prime is 203143011201209. The next prime is 203143011201223. The reversal of 203143011201220 is 22102110341302.

It is a junction number, because it is equal to n+sod(n) for n = 203143011201191 and 203143011201200.

It is not an unprimeable number, because it can be changed into a prime (203143011201223) 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, 969176830 + ... + 969386410.

It is an arithmetic number, because the mean of its divisors is an integer number (8893989417600).

Almost surely, 2^{203143011201220} is an apocalyptic number.

203143011201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203143011201220 is an abundant number, since it is smaller than the sum of its proper divisors (223768480843580).

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

203143011201220 is a wasteful number, since it uses less digits than its factorization.

203143011201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244708 (or 244706 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 203143011201220 its reverse (22102110341302), we get a palindrome (225245121542522).

The spelling of 203143011201220 in words is "two hundred three trillion, one hundred forty-three billion, eleven million, two hundred one thousand, two hundred twenty".