11321032021 has 16 divisors (see below), whose sum is σ = 12271279104. Its totient is φ = 10382275584.

The previous prime is 11321032013. The next prime is 11321032033. The reversal of 11321032021 is 12023012311.

11321032021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11321032021 - 2³ = 11321032013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11321031986 and 11321032004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321032421) 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 15 ways as a sum of consecutive naturals, for example, 2222940 + ... + 2228026.

It is an arithmetic number, because the mean of its divisors is an integer number (766954944).

Almost surely, 2^11321032021 is an apocalyptic number.

It is an amenable number.

11321032021 is a deficient number, since it is larger than the sum of its proper divisors (950247083).

11321032021 is a wasteful number, since it uses less digits than its factorization.

11321032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180.

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

Adding to 11321032021 its reverse (12023012311), we get a palindrome (23344044332).

The spelling of 11321032021 in words is "eleven billion, three hundred twenty-one million, thirty-two thousand, twenty-one".