11113333021 has 8 divisors (see below), whose sum is σ = 12705194304. Its totient is φ = 9522532320.

The previous prime is 11113333019. The next prime is 11113333027. The reversal of 11113333021 is 12033331111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11113333021 - 2¹ = 11113333019 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 11113333021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113333027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242560 + ... + 284713.

It is an arithmetic number, because the mean of its divisors is an integer number (1588149288).

Almost surely, 2^11113333021 is an apocalyptic number.

It is an amenable number.

11113333021 is a deficient number, since it is larger than the sum of its proper divisors (1591861283).

11113333021 is an equidigital number, since it uses as much as digits as its factorization.

11113333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530291.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11113333021 its reverse (12033331111), we get a palindrome (23146664132).

The spelling of 11113333021 in words is "eleven billion, one hundred thirteen million, three hundred thirty-three thousand, twenty-one".