11321132121011 has 4 divisors (see below), whose sum is σ = 11338630007472. Its totient is φ = 11303634234552.

The previous prime is 11321132120999. The next prime is 11321132121071. The reversal of 11321132121011 is 11012123112311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11321132121011 - 2¹⁸ = 11321131858867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321132121071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8748942260 + ... + 8748943553.

It is an arithmetic number, because the mean of its divisors is an integer number (2834657501868).

Almost surely, 2^{11321132121011} is an apocalyptic number.

11321132121011 is a deficient number, since it is larger than the sum of its proper divisors (17497886461).

11321132121011 is an equidigital number, since it uses as much as digits as its factorization.

11321132121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17497886460.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 11321132121011 its reverse (11012123112311), we get a palindrome (22333255233322).

The spelling of 11321132121011 in words is "eleven trillion, three hundred twenty-one billion, one hundred thirty-two million, one hundred twenty-one thousand, eleven".