21322133303 has 2 divisors, whose sum is σ = 21322133304. Its totient is φ = 21322133302.

The previous prime is 21322133267. The next prime is 21322133323. The reversal of 21322133303 is 30333122312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21322133303 - 2⁸ = 21322133047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21322133323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661066651 + 10661066652.

It is an arithmetic number, because the mean of its divisors is an integer number (10661066652).

Almost surely, 2^21322133303 is an apocalyptic number.

21322133303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322133303 is an equidigital number, since it uses as much as digits as its factorization.

21322133303 is an evil number, because the sum of its binary digits is even.

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

Adding to 21322133303 its reverse (30333122312), we get a palindrome (51655255615).

The spelling of 21322133303 in words is "twenty-one billion, three hundred twenty-two million, one hundred thirty-three thousand, three hundred three".