11320002320 has 80 divisors (see below), whose sum is σ = 28788246720. Its totient is φ = 4105382400.

The previous prime is 11320002277. The next prime is 11320002389. The reversal of 11320002320 is 2320002311.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 11320002295 and 11320002304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316550 + ... + 350490.

It is an arithmetic number, because the mean of its divisors is an integer number (359853084).

Almost surely, 2^11320002320 is an apocalyptic number.

11320002320 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 11320002320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14394123360).

11320002320 is an abundant number, since it is smaller than the sum of its proper divisors (17468244400).

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

11320002320 is a wasteful number, since it uses less digits than its factorization.

11320002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34344 (or 34338 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 11320002320 its reverse (2320002311), we get a palindrome (13640004631).

Subtracting from 11320002320 its reverse (2320002311), we obtain a palindrome (9000000009).

The spelling of 11320002320 in words is "eleven billion, three hundred twenty million, two thousand, three hundred twenty".