20205203329 has 2 divisors, whose sum is σ = 20205203330. Its totient is φ = 20205203328.

The previous prime is 20205203327. The next prime is 20205203353. The reversal of 20205203329 is 92330250202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20205201025 + 2304 = 142145^2 + 48^2 .

It is a cyclic number.

It is not a de Polignac number, because 20205203329 - 2¹ = 20205203327 is a prime.

Together with 20205203327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20205203297 and 20205203306.

It is not a weakly prime, because it can be changed into another prime (20205203327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102601664 + 10102601665.

It is an arithmetic number, because the mean of its divisors is an integer number (10102601665).

Almost surely, 2^20205203329 is an apocalyptic number.

It is an amenable number.

20205203329 is a deficient number, since it is larger than the sum of its proper divisors (1).

20205203329 is an equidigital number, since it uses as much as digits as its factorization.

20205203329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The spelling of 20205203329 in words is "twenty billion, two hundred five million, two hundred three thousand, three hundred twenty-nine".