20321300053 has 2 divisors, whose sum is σ = 20321300054. Its totient is φ = 20321300052.

The previous prime is 20321299931. The next prime is 20321300059. The reversal of 20321300053 is 35000312302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19486205649 + 835094404 = 139593^2 + 28898^2 .

It is a cyclic number.

It is not a de Polignac number, because 20321300053 - 2⁹ = 20321299541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20321300053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20321300059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160650026 + 10160650027.

It is an arithmetic number, because the mean of its divisors is an integer number (10160650027).

Almost surely, 2^20321300053 is an apocalyptic number.

It is an amenable number.

20321300053 is a deficient number, since it is larger than the sum of its proper divisors (1).

20321300053 is an equidigital number, since it uses as much as digits as its factorization.

20321300053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 19.

Adding to 20321300053 its reverse (35000312302), we get a palindrome (55321612355).

The spelling of 20321300053 in words is "twenty billion, three hundred twenty-one million, three hundred thousand, fifty-three".