20203113110220 has 144 divisors (see below), whose sum is σ = 63265180873440. Its totient is φ = 5214728429568.

The previous prime is 20203113110207. The next prime is 20203113110251. The reversal of 20203113110220 is 2201131130202.

20203113110220 is a `hidden beast` number, since 2 + 0 + 20 + 311 + 3 + 110 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20203113110193 and 20203113110202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6573430 + ... + 9144189.

Almost surely, 2^{20203113110220} is an apocalyptic number.

20203113110220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20203113110220 is an abundant number, since it is smaller than the sum of its proper divisors (43062067763220).

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

20203113110220 is a wasteful number, since it uses less digits than its factorization.

20203113110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15717864 (or 15717859 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20203113110220 its reverse (2201131130202), we get a palindrome (22404244240422).

The spelling of 20203113110220 in words is "twenty trillion, two hundred three billion, one hundred thirteen million, one hundred ten thousand, two hundred twenty".