21232133303 has 4 divisors (see below), whose sum is σ = 21232546728. Its totient is φ = 21231719880.

The previous prime is 21232133297. The next prime is 21232133369. The reversal of 21232133303 is 30333123212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21232133303 - 2⁴ = 21232133287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232133003) 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 3 ways as a sum of consecutive naturals, for example, 116576 + ... + 236757.

It is an arithmetic number, because the mean of its divisors is an integer number (5308136682).

Almost surely, 2^21232133303 is an apocalyptic number.

21232133303 is a deficient number, since it is larger than the sum of its proper divisors (413425).

21232133303 is an equidigital number, since it uses as much as digits as its factorization.

21232133303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413424.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21232133303 its reverse (30333123212), we get a palindrome (51565256515).

The spelling of 21232133303 in words is "twenty-one billion, two hundred thirty-two million, one hundred thirty-three thousand, three hundred three".