20130110433220 has 12 divisors (see below), whose sum is σ = 42273231909804. Its totient is φ = 8052044173280.

The previous prime is 20130110433163. The next prime is 20130110433221. The reversal of 20130110433220 is 2233401103102.

It can be written as a sum of positive squares in 2 ways, for example, as 6757514628484 + 13372595804736 = 2599522^2 + 3656856^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20130110433191 and 20130110433200.

It is not an unprimeable number, because it can be changed into a prime (20130110433221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503252760811 + ... + 503252760850.

It is an arithmetic number, because the mean of its divisors is an integer number (3522769325817).

Almost surely, 2^{20130110433220} is an apocalyptic number.

20130110433220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20130110433220 is an abundant number, since it is smaller than the sum of its proper divisors (22143121476584).

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

20130110433220 is a wasteful number, since it uses less digits than its factorization.

20130110433220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006505521670 (or 1006505521668 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20130110433220 its reverse (2233401103102), we get a palindrome (22363511536322).

The spelling of 20130110433220 in words is "twenty trillion, one hundred thirty billion, one hundred ten million, four hundred thirty-three thousand, two hundred twenty".