11522321118 has 320 divisors, whose sum is σ = 33721712640. Its totient is φ = 2853403200.

The previous prime is 11522321113. The next prime is 11522321131. The reversal of 11522321118 is 81112322511.

11522321118 is a `hidden beast` number, since 1 + 1 + 522 + 3 + 21 + 118 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11522321091 and 11522321100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11522321113) by changing a digit.

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 159 ways as a sum of consecutive naturals, for example, 32095423 + ... + 32095781.

It is an arithmetic number, because the mean of its divisors is an integer number (105380352).

Almost surely, 2^11522321118 is an apocalyptic number.

11522321118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11522321118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16860856320).

11522321118 is an abundant number, since it is smaller than the sum of its proper divisors (22199391522).

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

11522321118 is a wasteful number, since it uses less digits than its factorization.

11522321118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 496 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

Adding to 11522321118 its reverse (81112322511), we get a palindrome (92634643629).

The spelling of 11522321118 in words is "eleven billion, five hundred twenty-two million, three hundred twenty-one thousand, one hundred eighteen".