11100312320 has 72 divisors (see below), whose sum is σ = 26609446080. Its totient is φ = 4436664320.

The previous prime is 11100312319. The next prime is 11100312331. The reversal of 11100312320 is 2321300111.

It is a junction number, because it is equal to n+sod(n) for n = 11100312295 and 11100312304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200361 + ... + 2205399.

It is an arithmetic number, because the mean of its divisors is an integer number (369575640).

Almost surely, 2^11100312320 is an apocalyptic number.

11100312320 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 11100312320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13304723040).

11100312320 is an abundant number, since it is smaller than the sum of its proper divisors (15509133760).

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

11100312320 is an equidigital number, since it uses as much as digits as its factorization.

11100312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781 (or 6767 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11100312320 its reverse (2321300111), we get a palindrome (13421612431).

The spelling of 11100312320 in words is "eleven billion, one hundred million, three hundred twelve thousand, three hundred twenty".