11113110111021 has 16 divisors (see below), whose sum is σ = 15632085528000. Its totient is φ = 7003174284288.

The previous prime is 11113110110981. The next prime is 11113110111023. The reversal of 11113110111021 is 12011101131111.

It is a happy number.

It is not a de Polignac number, because 11113110111021 - 2⁶ = 11113110110957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113110111023) 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, 217086706 + ... + 217137891.

It is an arithmetic number, because the mean of its divisors is an integer number (977005345500).

Almost surely, 2^{11113110111021} is an apocalyptic number.

It is an amenable number.

11113110111021 is a deficient number, since it is larger than the sum of its proper divisors (4518975416979).

11113110111021 is a wasteful number, since it uses less digits than its factorization.

11113110111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434225068.

The product of its (nonzero) digits is 6, while the sum is 15.

Adding to 11113110111021 its reverse (12011101131111), we get a palindrome (23124211242132).

The spelling of 11113110111021 in words is "eleven trillion, one hundred thirteen billion, one hundred ten million, one hundred eleven thousand, twenty-one".