11321113312020 has 144 divisors (see below), whose sum is σ = 32638694074560. Its totient is φ = 2931988340736.

The previous prime is 11321113312013. The next prime is 11321113312039. The reversal of 11321113312020 is 2021331112311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44804596 + ... + 45056564.

It is an arithmetic number, because the mean of its divisors is an integer number (226657597740).

Almost surely, 2^{11321113312020} is an apocalyptic number.

11321113312020 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 11321113312020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16319347037280).

11321113312020 is an abundant number, since it is smaller than the sum of its proper divisors (21317580762540).

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

11321113312020 is a wasteful number, since it uses less digits than its factorization.

11321113312020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252602 (or 252563 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11321113312020 its reverse (2021331112311), we get a palindrome (13342444424331).

The spelling of 11321113312020 in words is "eleven trillion, three hundred twenty-one billion, one hundred thirteen million, three hundred twelve thousand, twenty".