11321113104 has 120 divisors (see below), whose sum is σ = 36238430592. Its totient is φ = 3232028160.

The previous prime is 11321113043. The next prime is 11321113171. The reversal of 11321113104 is 40131112311.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1519372 + ... + 1526804.

Almost surely, 2^11321113104 is an apocalyptic number.

11321113104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11321113104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18119215296).

11321113104 is an abundant number, since it is smaller than the sum of its proper divisors (24917317488).

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

11321113104 is a wasteful number, since it uses less digits than its factorization.

11321113104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965 (or 8956 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11321113104 its reverse (40131112311), we get a palindrome (51452225415).

The spelling of 11321113104 in words is "eleven billion, three hundred twenty-one million, one hundred thirteen thousand, one hundred four".