11131320112021 has 16 divisors (see below), whose sum is σ = 11181579816960. Its totient is φ = 11081189975040.

The previous prime is 11131320112007. The next prime is 11131320112057. The reversal of 11131320112021 is 12021102313111.

It is a cyclic number.

It is not a de Polignac number, because 11131320112021 - 2³⁷ = 10993881158549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11131320112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131320112061) 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 15 ways as a sum of consecutive naturals, for example, 489901941 + ... + 489924661.

It is an arithmetic number, because the mean of its divisors is an integer number (698848738560).

Almost surely, 2^{11131320112021} is an apocalyptic number.

It is an amenable number.

11131320112021 is a deficient number, since it is larger than the sum of its proper divisors (50259704939).

11131320112021 is a wasteful number, since it uses less digits than its factorization.

11131320112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25476.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11131320112021 its reverse (12021102313111), we get a palindrome (23152422425132).

The spelling of 11131320112021 in words is "eleven trillion, one hundred thirty-one billion, three hundred twenty million, one hundred twelve thousand, twenty-one".