11110120020 has 144 divisors (see below), whose sum is σ = 34131621888. Its totient is φ = 2925054720.

The previous prime is 11110119997. The next prime is 11110120093. The reversal of 11110120020 is 2002101111.

It is a happy number.

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 = 11110119984 and 11110120011.

It is a congruent number.

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, 5188150 + ... + 5190290.

It is an arithmetic number, because the mean of its divisors is an integer number (237025152).

Almost surely, 2^11110120020 is an apocalyptic number.

11110120020 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 11110120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17065810944).

11110120020 is an abundant number, since it is smaller than the sum of its proper divisors (23021501868).

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

11110120020 is a wasteful number, since it uses less digits than its factorization.

11110120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510 (or 2505 counting only the distinct ones).

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

Adding to 11110120020 its reverse (2002101111), we get a palindrome (13112221131).

The spelling of 11110120020 in words is "eleven billion, one hundred ten million, one hundred twenty thousand, twenty".