11201211232321 has 64 divisors (see below), whose sum is σ = 12931162030080. Its totient is φ = 9608882400000.

The previous prime is 11201211232313. The next prime is 11201211232357. The reversal of 11201211232321 is 12323211210211.

It is a happy number.

It is not a de Polignac number, because 11201211232321 - 2³ = 11201211232313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11201211232292 and 11201211232301.

It is not an unprimeable number, because it can be changed into a prime (11201211232021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2281768015 + ... + 2281772923.

It is an arithmetic number, because the mean of its divisors is an integer number (202049406720).

Almost surely, 2^{11201211232321} is an apocalyptic number.

11201211232321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11201211232321 is a deficient number, since it is larger than the sum of its proper divisors (1729950797759).

11201211232321 is a wasteful number, since it uses less digits than its factorization.

11201211232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 11201211232321 its reverse (12323211210211), we get a palindrome (23524422442532).

The spelling of 11201211232321 in words is "eleven trillion, two hundred one billion, two hundred eleven million, two hundred thirty-two thousand, three hundred twenty-one".