21322301333 has 2 divisors, whose sum is σ = 21322301334. Its totient is φ = 21322301332.

The previous prime is 21322301327. The next prime is 21322301347. The reversal of 21322301333 is 33310322312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19037652529 + 2284648804 = 137977^2 + 47798^2 .

It is a cyclic number.

It is not a de Polignac number, because 21322301333 - 2⁶ = 21322301269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21322301299 and 21322301308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21322301383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661150666 + 10661150667.

It is an arithmetic number, because the mean of its divisors is an integer number (10661150667).

Almost surely, 2^21322301333 is an apocalyptic number.

It is an amenable number.

21322301333 is a deficient number, since it is larger than the sum of its proper divisors (1).

21322301333 is an equidigital number, since it uses as much as digits as its factorization.

21322301333 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 21322301333 its reverse (33310322312), we get a palindrome (54632623645).

The spelling of 21322301333 in words is "twenty-one billion, three hundred twenty-two million, three hundred one thousand, three hundred thirty-three".