11113123320 has 256 divisors, whose sum is σ = 39987763200. Its totient is φ = 2729064960.

The previous prime is 11113123249. The next prime is 11113123327. The reversal of 11113123320 is 2332131111.

11113123320 is a `hidden beast` number, since 11 + 11 + 312 + 332 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11113123293 and 11113123302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113123327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9027105 + ... + 9028335.

It is an arithmetic number, because the mean of its divisors is an integer number (156202200).

Almost surely, 2^11113123320 is an apocalyptic number.

11113123320 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 11113123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19993881600).

11113123320 is an abundant number, since it is smaller than the sum of its proper divisors (28874639880).

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

11113123320 is a wasteful number, since it uses less digits than its factorization.

11113123320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11113123320 its reverse (2332131111), we get a palindrome (13445254431).

The spelling of 11113123320 in words is "eleven billion, one hundred thirteen million, one hundred twenty-three thousand, three hundred twenty".