11123030120 has 16 divisors (see below), whose sum is σ = 25026817860. Its totient is φ = 4449212032.

The previous prime is 11123030089. The next prime is 11123030123. The reversal of 11123030120 is 2103032111.

It can be written as a sum of positive squares in 2 ways, for example, as 9123688324 + 1999341796 = 95518^2 + 44714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11123030095 and 11123030104.

It is not an unprimeable number, because it can be changed into a prime (11123030123) 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, 139037837 + ... + 139037916.

Almost surely, 2^11123030120 is an apocalyptic number.

11123030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11123030120 is an abundant number, since it is smaller than the sum of its proper divisors (13903787740).

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

11123030120 is a wasteful number, since it uses less digits than its factorization.

11123030120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278075764 (or 278075760 counting only the distinct ones).

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

Adding to 11123030120 its reverse (2103032111), we get a palindrome (13226062231).

The spelling of 11123030120 in words is "eleven billion, one hundred twenty-three million, thirty thousand, one hundred twenty".