20315303643067 has 2 divisors, whose sum is σ = 20315303643068. Its totient is φ = 20315303643066.

The previous prime is 20315303643053. The next prime is 20315303643091. The reversal of 20315303643067 is 76034630351302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20315303643067 - 2²³ = 20315295254459 is a prime.

It is a super-2 number, since 2×20315303643067² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20315303653067) 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, 10157651821533 + 10157651821534.

It is an arithmetic number, because the mean of its divisors is an integer number (10157651821534).

Almost surely, 2^{20315303643067} is an apocalyptic number.

20315303643067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20315303643067 is an equidigital number, since it uses as much as digits as its factorization.

20315303643067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 43.

Adding to 20315303643067 its reverse (76034630351302), we get a palindrome (96349933994369).

The spelling of 20315303643067 in words is "twenty trillion, three hundred fifteen billion, three hundred three million, six hundred forty-three thousand, sixty-seven".