21323332301 has 2 divisors, whose sum is σ = 21323332302. Its totient is φ = 21323332300.

The previous prime is 21323332279. The next prime is 21323332363. The reversal of 21323332301 is 10323332312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14430015625 + 6893316676 = 120125^2 + 83026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21323332301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21323332001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10661666150 + 10661666151.

It is an arithmetic number, because the mean of its divisors is an integer number (10661666151).

Almost surely, 2^21323332301 is an apocalyptic number.

It is an amenable number.

21323332301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21323332301 is an equidigital number, since it uses as much as digits as its factorization.

21323332301 is an odious number, because the sum of its binary digits is odd.

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

Adding to 21323332301 its reverse (10323332312), we get a palindrome (31646664613).

The spelling of 21323332301 in words is "twenty-one billion, three hundred twenty-three million, three hundred thirty-two thousand, three hundred one".