21233100221303 has 2 divisors, whose sum is σ = 21233100221304. Its totient is φ = 21233100221302.

The previous prime is 21233100221297. The next prime is 21233100221351. The reversal of 21233100221303 is 30312200133212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21233100221303 - 2⁴ = 21233100221287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21233100221383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616550110651 + 10616550110652.

It is an arithmetic number, because the mean of its divisors is an integer number (10616550110652).

Almost surely, 2^{21233100221303} is an apocalyptic number.

21233100221303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233100221303 is an equidigital number, since it uses as much as digits as its factorization.

21233100221303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 21233100221303 its reverse (30312200133212), we get a palindrome (51545300354515).

The spelling of 21233100221303 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred million, two hundred twenty-one thousand, three hundred three".