11123000320 has 44 divisors (see below), whose sum is σ = 26682178284. Its totient is φ = 4449198080.

The previous prime is 11123000309. The next prime is 11123000321. The reversal of 11123000320 is 2300032111.

It can be written as a sum of positive squares in 2 ways, for example, as 3025880064 + 8097120256 = 55008^2 + 89984^2 .

It is a super-2 number, since 2×11123000320² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11123000320.

It is not an unprimeable number, because it can be changed into a prime (11123000321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081111 + ... + 1091350.

Almost surely, 2^11123000320 is an apocalyptic number.

11123000320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11123000320 is an abundant number, since it is smaller than the sum of its proper divisors (15559177964).

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

11123000320 is an equidigital number, since it uses as much as digits as its factorization.

11123000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172486 (or 2172468 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 11123000320 its reverse (2300032111), we get a palindrome (13423032431).

The spelling of 11123000320 in words is "eleven billion, one hundred twenty-three million, three hundred twenty", and thus it is an aban number.