20320302313247 has 2 divisors, whose sum is σ = 20320302313248. Its totient is φ = 20320302313246.

The previous prime is 20320302313159. The next prime is 20320302313291. The reversal of 20320302313247 is 74231320302302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20320302313247 - 2¹⁴ = 20320302296863 is a prime.

It is a super-2 number, since 2×20320302313247² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20320302313847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10160151156623 + 10160151156624.

It is an arithmetic number, because the mean of its divisors is an integer number (10160151156624).

Almost surely, 2^{20320302313247} is an apocalyptic number.

20320302313247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320302313247 is an equidigital number, since it uses as much as digits as its factorization.

20320302313247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 32.

Adding to 20320302313247 its reverse (74231320302302), we get a palindrome (94551622615549).

The spelling of 20320302313247 in words is "twenty trillion, three hundred twenty billion, three hundred two million, three hundred thirteen thousand, two hundred forty-seven".