11120111020 has 96 divisors (see below), whose sum is σ = 24236061696. Its totient is φ = 4283020800.

The previous prime is 11120110999. The next prime is 11120111053. The reversal of 11120111020 is 2011102111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 11120110988 and 11120111006.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36221707 + ... + 36222013.

It is an arithmetic number, because the mean of its divisors is an integer number (252458976).

Almost surely, 2^11120111020 is an apocalyptic number.

11120111020 is a gapful number since it is divisible by the number (10) 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 11120111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12118030848).

11120111020 is an abundant number, since it is smaller than the sum of its proper divisors (13115950676).

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

11120111020 is a wasteful number, since it uses less digits than its factorization.

11120111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 11120111020 its reverse (2011102111), we get a palindrome (13131213131).

It can be divided in two parts, 111201 and 11020, that added together give a palindrome (122221).

The spelling of 11120111020 in words is "eleven billion, one hundred twenty million, one hundred eleven thousand, twenty".