20315305535347 has 2 divisors, whose sum is σ = 20315305535348. Its totient is φ = 20315305535346.

The previous prime is 20315305535309. The next prime is 20315305535381. The reversal of 20315305535347 is 74353550351302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20315305535347 - 2⁷ = 20315305535219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20315305535297 and 20315305535306.

It is not a weakly prime, because it can be changed into another prime (20315305535947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10157652767673 + 10157652767674.

It is an arithmetic number, because the mean of its divisors is an integer number (10157652767674).

Almost surely, 2^{20315305535347} is an apocalyptic number.

20315305535347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20315305535347 is an equidigital number, since it uses as much as digits as its factorization.

20315305535347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835000, while the sum is 46.

Adding to 20315305535347 its reverse (74353550351302), we get a palindrome (94668855886649).

The spelling of 20315305535347 in words is "twenty trillion, three hundred fifteen billion, three hundred five million, five hundred thirty-five thousand, three hundred forty-seven".