11231112320 has 32 divisors (see below), whose sum is σ = 26849379420. Its totient is φ = 4492444672.

The previous prime is 11231112317. The next prime is 11231112331. The reversal of 11231112320 is 2321113211.

It can be written as a sum of positive squares in 2 ways, for example, as 11190254656 + 40857664 = 105784^2 + 6392^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×11231112320² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8773667 + ... + 8774946.

Almost surely, 2^11231112320 is an apocalyptic number.

11231112320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11231112320 is an abundant number, since it is smaller than the sum of its proper divisors (15618267100).

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

11231112320 is an equidigital number, since it uses as much as digits as its factorization.

11231112320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17548632 (or 17548620 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11231112320 its reverse (2321113211), we get a palindrome (13552225531).

The spelling of 11231112320 in words is "eleven billion, two hundred thirty-one million, one hundred twelve thousand, three hundred twenty".