11111020011020 has 12 divisors (see below), whose sum is σ = 23333142023184. Its totient is φ = 4444408004400.

The previous prime is 11111020010977. The next prime is 11111020011023. The reversal of 11111020011020 is 2011002011111.

11111020011020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11111020010992 and 11111020011010.

It is not an unprimeable number, because it can be changed into a prime (11111020011023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277775500256 + ... + 277775500295.

It is an arithmetic number, because the mean of its divisors is an integer number (1944428501932).

Almost surely, 2^{11111020011020} is an apocalyptic number.

11111020011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111020011020 is an abundant number, since it is smaller than the sum of its proper divisors (12222122012164).

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

11111020011020 is a wasteful number, since it uses less digits than its factorization.

11111020011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555551000560 (or 555551000558 counting only the distinct ones).

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

Adding to 11111020011020 its reverse (2011002011111), we get a palindrome (13122022022131).

The spelling of 11111020011020 in words is "eleven trillion, one hundred eleven billion, twenty million, eleven thousand, twenty".