11115623424 has 88 divisors (see below), whose sum is σ = 29683268608. Its totient is φ = 3698196480.

The previous prime is 11115623401. The next prime is 11115623429. The reversal of 11115623424 is 42432651111.

It is a junction number, because it is equal to n+sod(n) for n = 11115623391 and 11115623400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115623429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769409 + ... + 1775679.

Almost surely, 2^11115623424 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 11115623424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14841634304).

11115623424 is an abundant number, since it is smaller than the sum of its proper divisors (18567645184).

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

11115623424 is an equidigital number, since it uses as much as digits as its factorization.

11115623424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6871 (or 6853 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The spelling of 11115623424 in words is "eleven billion, one hundred fifteen million, six hundred twenty-three thousand, four hundred twenty-four".