11320520680 has 64 divisors (see below), whose sum is σ = 29218320000. Its totient is φ = 3866866944.

The previous prime is 11320520621. The next prime is 11320520681. The reversal of 11320520680 is 8602502311.

11320520680 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 (28).

It is not an unprimeable number, because it can be changed into a prime (11320520681) 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 15 ways as a sum of consecutive naturals, for example, 171 + ... + 150469.

It is an arithmetic number, because the mean of its divisors is an integer number (456536250).

Almost surely, 2^11320520680 is an apocalyptic number.

11320520680 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 11320520680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14609160000).

11320520680 is an abundant number, since it is smaller than the sum of its proper divisors (17897799320).

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

11320520680 is a wasteful number, since it uses less digits than its factorization.

11320520680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150586 (or 150582 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 11320520680 in words is "eleven billion, three hundred twenty million, five hundred twenty thousand, six hundred eighty".