20432203553317 has 2 divisors, whose sum is σ = 20432203553318. Its totient is φ = 20432203553316.

The previous prime is 20432203553269. The next prime is 20432203553347. The reversal of 20432203553317 is 71335530223402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17302679803201 + 3129523750116 = 4159649^2 + 1769046^2 .

It is a cyclic number.

It is not a de Polignac number, because 20432203553317 - 2⁷ = 20432203553189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20432203553317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20432203553347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10216101776658 + 10216101776659.

It is an arithmetic number, because the mean of its divisors is an integer number (10216101776659).

Almost surely, 2^{20432203553317} is an apocalyptic number.

It is an amenable number.

20432203553317 is a deficient number, since it is larger than the sum of its proper divisors (1).

20432203553317 is an equidigital number, since it uses as much as digits as its factorization.

20432203553317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 40.

Adding to 20432203553317 its reverse (71335530223402), we get a palindrome (91767733776719).

The spelling of 20432203553317 in words is "twenty trillion, four hundred thirty-two billion, two hundred three million, five hundred fifty-three thousand, three hundred seventeen".