20324303353 has 2 divisors, whose sum is σ = 20324303354. Its totient is φ = 20324303352.

The previous prime is 20324303333. The next prime is 20324303381. The reversal of 20324303353 is 35330342302.

It is a happy number.

It is an a-pointer prime, because the next prime (20324303381) can be obtained adding 20324303353 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18476421184 + 1847882169 = 135928^2 + 42987^2 .

It is a cyclic number.

It is not a de Polignac number, because 20324303353 - 2²⁵ = 20290748921 is a prime.

It is not a weakly prime, because it can be changed into another prime (20324303333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162151676 + 10162151677.

It is an arithmetic number, because the mean of its divisors is an integer number (10162151677).

Almost surely, 2^20324303353 is an apocalyptic number.

It is an amenable number.

20324303353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324303353 is an equidigital number, since it uses as much as digits as its factorization.

20324303353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 28.

Adding to 20324303353 its reverse (35330342302), we get a palindrome (55654645655).

The spelling of 20324303353 in words is "twenty billion, three hundred twenty-four million, three hundred three thousand, three hundred fifty-three".