21330303023233 has 24 divisors (see below), whose sum is σ = 23645588662080. Its totient is φ = 19201438375680.

The previous prime is 21330303023173. The next prime is 21330303023243. The reversal of 21330303023233 is 33232030303312.

It is a de Polignac number, because none of the positive numbers 2^k-21330303023233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21330303023243) 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 23 ways as a sum of consecutive naturals, for example, 106857163 + ... + 107056591.

It is an arithmetic number, because the mean of its divisors is an integer number (985232860920).

Almost surely, 2^{21330303023233} is an apocalyptic number.

21330303023233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21330303023233 is a deficient number, since it is larger than the sum of its proper divisors (2315285638847).

21330303023233 is a wasteful number, since it uses less digits than its factorization.

21330303023233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215577 (or 215560 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 28.

Adding to 21330303023233 its reverse (33232030303312), we get a palindrome (54562333326545).

The spelling of 21330303023233 in words is "twenty-one trillion, three hundred thirty billion, three hundred three million, twenty-three thousand, two hundred thirty-three".