11011112000020 has 96 divisors (see below), whose sum is σ = 25494658761600. Its totient is φ = 3994480497920.

The previous prime is 11011111999969. The next prime is 11011112000027. The reversal of 11011112000020 is 2000021111011.

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 = 11011111999970 and 11011112000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011112000027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10660176 + ... + 11647384.

It is an arithmetic number, because the mean of its divisors is an integer number (265569362100).

Almost surely, 2^{11011112000020} is an apocalyptic number.

11011112000020 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 11011112000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12747329380800).

11011112000020 is an abundant number, since it is smaller than the sum of its proper divisors (14483546761580).

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

11011112000020 is a wasteful number, since it uses less digits than its factorization.

11011112000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987670 (or 987646 counting only the distinct ones).

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

Adding to 11011112000020 its reverse (2000021111011), we get a palindrome (13011133111031).

The spelling of 11011112000020 in words is "eleven trillion, eleven billion, one hundred twelve million, twenty", and thus it is an aban number.