11313132320 has 96 divisors (see below), whose sum is σ = 30603557376. Its totient is φ = 3871411200.

The previous prime is 11313132251. The next prime is 11313132329. The reversal of 11313132320 is 2323131311.

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 = 11313132292 and 11313132301.

It is not an unprimeable number, because it can be changed into a prime (11313132329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 596585 + ... + 615255.

It is an arithmetic number, because the mean of its divisors is an integer number (318787056).

Almost surely, 2^11313132320 is an apocalyptic number.

11313132320 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 11313132320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15301778688).

11313132320 is an abundant number, since it is smaller than the sum of its proper divisors (19290425056).

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

11313132320 is a wasteful number, since it uses less digits than its factorization.

11313132320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19234 (or 19226 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11313132320 its reverse (2323131311), we get a palindrome (13636263631).

The spelling of 11313132320 in words is "eleven billion, three hundred thirteen million, one hundred thirty-two thousand, three hundred twenty".