11011201020 has 96 divisors (see below), whose sum is σ = 34276112640. Its totient is φ = 2934688320.

The previous prime is 11011201013. The next prime is 11011201021. The reversal of 11011201020 is 2010211011.

It is a happy number.

11011201020 is digitally balanced in base 2, 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 = 11011200993 and 11011201011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011201021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1206675 + ... + 1215765.

It is an arithmetic number, because the mean of its divisors is an integer number (357042840).

Almost surely, 2^11011201020 is an apocalyptic number.

11011201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011201020 is an abundant number, since it is smaller than the sum of its proper divisors (23264911620).

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

11011201020 is a wasteful number, since it uses less digits than its factorization.

11011201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11352 (or 11344 counting only the distinct ones).

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

Adding to 11011201020 its reverse (2010211011), we get a palindrome (13021412031).

Subtracting from 11011201020 its reverse (2010211011), we obtain a palindrome (9000990009).

The spelling of 11011201020 in words is "eleven billion, eleven million, two hundred one thousand, twenty".