11113451328 has 224 divisors, whose sum is σ = 35239366656. Its totient is φ = 3022221312.

The previous prime is 11113451309. The next prime is 11113451339. The reversal of 11113451328 is 82315431111.

It is a tau number, because it is divible by the number of its divisors (224).

It is a junction number, because it is equal to n+sod(n) for n = 11113451295 and 11113451304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7201725 + ... + 7203267.

Almost surely, 2^11113451328 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 11113451328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17619683328).

11113451328 is an abundant number, since it is smaller than the sum of its proper divisors (24125915328).

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

11113451328 is a wasteful number, since it uses less digits than its factorization.

11113451328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1811 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

Adding to 11113451328 its reverse (82315431111), we get a palindrome (93428882439).

The spelling of 11113451328 in words is "eleven billion, one hundred thirteen million, four hundred fifty-one thousand, three hundred twenty-eight".