11321132020 has 96 divisors (see below), whose sum is σ = 26601353856. Its totient is φ = 4011571200.

The previous prime is 11321131999. The next prime is 11321132021. The reversal of 11321132020 is 2023112311.

11321132020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11321131985 and 11321132003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321132021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4927512 + ... + 4929808.

It is an arithmetic number, because the mean of its divisors is an integer number (277097436).

Almost surely, 2^11321132020 is an apocalyptic number.

11321132020 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 11321132020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13300676928).

11321132020 is an abundant number, since it is smaller than the sum of its proper divisors (15280221836).

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

11321132020 is a wasteful number, since it uses less digits than its factorization.

11321132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881 (or 2879 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11321132020 its reverse (2023112311), we get a palindrome (13344244331).

It can be divided in two parts, 11321 and 132020, that added together give a palindrome (143341).

The spelling of 11321132020 in words is "eleven billion, three hundred twenty-one million, one hundred thirty-two thousand, twenty".