111030113133221 has 4 divisors (see below), whose sum is σ = 111030201002412. Its totient is φ = 111030025264032.

The previous prime is 111030113133193. The next prime is 111030113133227. The reversal of 111030113133221 is 122331311030111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 101942119096321 + 9087994036900 = 10096639^2 + 3014630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111030113133221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111030113133227) 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, 42011150 + ... + 44575743.

It is an arithmetic number, because the mean of its divisors is an integer number (27757550250603).

Almost surely, 2^{111030113133221} is an apocalyptic number.

It is an amenable number.

111030113133221 is a deficient number, since it is larger than the sum of its proper divisors (87869191).

111030113133221 is an equidigital number, since it uses as much as digits as its factorization.

111030113133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87869190.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 111030113133221 its reverse (122331311030111), we get a palindrome (233361424163332).

The spelling of 111030113133221 in words is "one hundred eleven trillion, thirty billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred twenty-one".