20111110110020 has 144 divisors (see below), whose sum is σ = 48254385166848. Its totient is φ = 7008440355840.

The previous prime is 20111110109983. The next prime is 20111110110067. The reversal of 20111110110020 is 2001101111102.

20111110110020 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×20111110110020³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20111110109983 and 20111110110010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3772187 + ... + 7379133.

It is an arithmetic number, because the mean of its divisors is an integer number (335099896992).

Almost surely, 2^{20111110110020} is an apocalyptic number.

20111110110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20111110110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24127192583424).

20111110110020 is an abundant number, since it is smaller than the sum of its proper divisors (28143275056828).

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

20111110110020 is a wasteful number, since it uses less digits than its factorization.

20111110110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607050 (or 3607025 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20111110110020 its reverse (2001101111102), we get a palindrome (22112211221122).

The spelling of 20111110110020 in words is "twenty trillion, one hundred eleven billion, one hundred ten million, one hundred ten thousand, twenty".