11123031104 has 56 divisors (see below), whose sum is σ = 23048854080. Its totient is φ = 5315802624.

The previous prime is 11123031103. The next prime is 11123031107. The reversal of 11123031104 is 40113032111.

It is not an unprimeable number, because it can be changed into a prime (11123031103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3515027 + ... + 3518189.

It is an arithmetic number, because the mean of its divisors is an integer number (411586680).

Almost surely, 2^11123031104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11123031104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11524427040).

11123031104 is an abundant number, since it is smaller than the sum of its proper divisors (11925822976).

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

11123031104 is a wasteful number, since it uses less digits than its factorization.

11123031104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587 (or 5577 counting only the distinct ones).

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

Adding to 11123031104 its reverse (40113032111), we get a palindrome (51236063215).

The spelling of 11123031104 in words is "eleven billion, one hundred twenty-three million, thirty-one thousand, one hundred four".