21110033323 has 8 divisors (see below), whose sum is σ = 21518290656. Its totient is φ = 20704857600.

The previous prime is 21110033311. The next prime is 21110033359. The reversal of 21110033323 is 32333001112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21110033323 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 21110033323.

It is not an unprimeable number, because it can be changed into a prime (21110033303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756568 + ... + 783973.

It is an arithmetic number, because the mean of its divisors is an integer number (2689786332).

Almost surely, 2^21110033323 is an apocalyptic number.

21110033323 is a deficient number, since it is larger than the sum of its proper divisors (408257333).

21110033323 is a wasteful number, since it uses less digits than its factorization.

21110033323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540805.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21110033323 its reverse (32333001112), we get a palindrome (53443034435).

The spelling of 21110033323 in words is "twenty-one billion, one hundred ten million, thirty-three thousand, three hundred twenty-three".