11001334520 has 96 divisors (see below), whose sum is σ = 27389849760. Its totient is φ = 3973728000.

The previous prime is 11001334481. The next prime is 11001334537. The reversal of 11001334520 is 2543310011.

It is a super-2 number, since 2×11001334520² (a number of 21 digits) contains 22 as substring.

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 = 11001334492 and 11001334501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 723314 + ... + 738366.

It is an arithmetic number, because the mean of its divisors is an integer number (285310935).

Almost surely, 2^11001334520 is an apocalyptic number.

11001334520 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 11001334520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13694924880).

11001334520 is an abundant number, since it is smaller than the sum of its proper divisors (16388515240).

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

11001334520 is a wasteful number, since it uses less digits than its factorization.

11001334520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15237 (or 15222 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 11001334520 its reverse (2543310011), we get a palindrome (13544644531).

The spelling of 11001334520 in words is "eleven billion, one million, three hundred thirty-four thousand, five hundred twenty".