20303410447 has 2 divisors, whose sum is σ = 20303410448. Its totient is φ = 20303410446.

The previous prime is 20303410411. The next prime is 20303410529. The reversal of 20303410447 is 74401430302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20303410447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20303416447) 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, 10151705223 + 10151705224.

It is an arithmetic number, because the mean of its divisors is an integer number (10151705224).

Almost surely, 2^20303410447 is an apocalyptic number.

20303410447 is a deficient number, since it is larger than the sum of its proper divisors (1).

20303410447 is an equidigital number, since it uses as much as digits as its factorization.

20303410447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

Adding to 20303410447 its reverse (74401430302), we get a palindrome (94704840749).

The spelling of 20303410447 in words is "twenty billion, three hundred three million, four hundred ten thousand, four hundred forty-seven".