21233033303 has 8 divisors (see below), whose sum is σ = 23459515488. Its totient is φ = 19115160064.

The previous prime is 21233033299. The next prime is 21233033323. The reversal of 21233033303 is 30333033212.

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

It is a cyclic number.

It is not a de Polignac number, because 21233033303 - 2² = 21233033299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233033323) 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, 27151826 + ... + 27152607.

It is an arithmetic number, because the mean of its divisors is an integer number (2932439436).

Almost surely, 2^21233033303 is an apocalyptic number.

21233033303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21233033303 is a deficient number, since it is larger than the sum of its proper divisors (2226482185).

21233033303 is a wasteful number, since it uses less digits than its factorization.

21233033303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54304473.

The product of its (nonzero) digits is 2916, while the sum is 23.

Adding to 21233033303 its reverse (30333033212), we get a palindrome (51566066515).

Subtracting 21233033303 from its reverse (30333033212), we obtain a palindrome (9099999909).

The spelling of 21233033303 in words is "twenty-one billion, two hundred thirty-three million, thirty-three thousand, three hundred three".