11131331110021 has 16 divisors (see below), whose sum is σ = 11690981054208. Its totient is φ = 10578007440000.

The previous prime is 11131331109973. The next prime is 11131331110111. The reversal of 11131331110021 is 12001113313111.

It is a cyclic number.

It is not a de Polignac number, because 11131331110021 - 2²⁵ = 11131297555589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131331110121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25060456 + ... + 25500766.

It is an arithmetic number, because the mean of its divisors is an integer number (730686315888).

Almost surely, 2^{11131331110021} is an apocalyptic number.

It is an amenable number.

11131331110021 is a deficient number, since it is larger than the sum of its proper divisors (559649944187).

11131331110021 is a wasteful number, since it uses less digits than its factorization.

11131331110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447492.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11131331110021 its reverse (12001113313111), we get a palindrome (23132444423132).

The spelling of 11131331110021 in words is "eleven trillion, one hundred thirty-one billion, three hundred thirty-one million, one hundred ten thousand, twenty-one".