20011120110 has 24 divisors (see below), whose sum is σ = 52028912520. Its totient is φ = 5336298672.

The previous prime is 20011120091. The next prime is 20011120159. The reversal of 20011120110 is 1102111002.

It is a happy number.

20011120110 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20011120092 and 20011120101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111172800 + ... + 111172979.

It is an arithmetic number, because the mean of its divisors is an integer number (2167871355).

Almost surely, 2^20011120110 is an apocalyptic number.

20011120110 is an abundant number, since it is smaller than the sum of its proper divisors (32017792410).

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

20011120110 is a wasteful number, since it uses less digits than its factorization.

20011120110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222345792 (or 222345789 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20011120110 its reverse (1102111002), we get a palindrome (21113231112).

The spelling of 20011120110 in words is "twenty billion, eleven million, one hundred twenty thousand, one hundred ten".