11123240004 has 96 divisors (see below), whose sum is σ = 29057911680. Its totient is φ = 3679603200.

The previous prime is 11123240003. The next prime is 11123240041. The reversal of 11123240004 is 40004232111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11123240003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9498339 + ... + 9499509.

It is an arithmetic number, because the mean of its divisors is an integer number (302686580).

Almost surely, 2^11123240004 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 11123240004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14528955840).

11123240004 is an abundant number, since it is smaller than the sum of its proper divisors (17934671676).

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

11123240004 is a wasteful number, since it uses less digits than its factorization.

11123240004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11123240004 its reverse (40004232111), we get a palindrome (51127472115).

The spelling of 11123240004 in words is "eleven billion, one hundred twenty-three million, two hundred forty thousand, four".