11321021324040 has 128 divisors (see below), whose sum is σ = 34473447486720. Its totient is φ = 2973875072000.

The previous prime is 11321021323987. The next prime is 11321021324057. The reversal of 11321021324040 is 4042312012311.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11321021324040.

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, 16885 + ... + 4758395.

It is an arithmetic number, because the mean of its divisors is an integer number (269323808490).

Almost surely, 2^{11321021324040} is an apocalyptic number.

11321021324040 is a gapful number since it is divisible by the number (10) 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 11321021324040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17236723743360).

11321021324040 is an abundant number, since it is smaller than the sum of its proper divisors (23152426162680).

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

11321021324040 is a wasteful number, since it uses less digits than its factorization.

11321021324040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741823 (or 4741819 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 11321021324040 its reverse (4042312012311), we get a palindrome (15363333336351).

The spelling of 11321021324040 in words is "eleven trillion, three hundred twenty-one billion, twenty-one million, three hundred twenty-four thousand, forty".