21223033113 has 8 divisors (see below), whose sum is σ = 28685013088. Its totient is φ = 13954870944.

The previous prime is 21223033109. The next prime is 21223033127. The reversal of 21223033113 is 31133032212.

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

It is not a de Polignac number, because 21223033113 - 2² = 21223033109 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 21223033113.

It is not an unprimeable number, because it can be changed into a prime (21223033813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48454195 + ... + 48454632.

It is an arithmetic number, because the mean of its divisors is an integer number (3585626636).

Almost surely, 2^21223033113 is an apocalyptic number.

It is an amenable number.

21223033113 is a deficient number, since it is larger than the sum of its proper divisors (7461979975).

21223033113 is an equidigital number, since it uses as much as digits as its factorization.

21223033113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96908903.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21223033113 its reverse (31133032212), we get a palindrome (52356065325).

Subtracting 21223033113 from its reverse (31133032212), we obtain a palindrome (9909999099).

The spelling of 21223033113 in words is "twenty-one billion, two hundred twenty-three million, thirty-three thousand, one hundred thirteen".