11115315020 has 96 divisors (see below), whose sum is σ = 26309707200. Its totient is φ = 3919601664.

The previous prime is 11115315011. The next prime is 11115315047. The reversal of 11115315020 is 2051351111.

It is a happy number.

11115315020 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 11115314983 and 11115315001.

It is an unprimeable number.

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, 565274 + ... + 584606.

It is an arithmetic number, because the mean of its divisors is an integer number (274059450).

Almost surely, 2^11115315020 is an apocalyptic number.

11115315020 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 11115315020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13154853600).

11115315020 is an abundant number, since it is smaller than the sum of its proper divisors (15194392180).

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

11115315020 is a wasteful number, since it uses less digits than its factorization.

11115315020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19467 (or 19465 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 11115315020 its reverse (2051351111), we get a palindrome (13166666131).

The spelling of 11115315020 in words is "eleven billion, one hundred fifteen million, three hundred fifteen thousand, twenty".