20351323065107 has 2 divisors, whose sum is σ = 20351323065108. Its totient is φ = 20351323065106.

The previous prime is 20351323065097. The next prime is 20351323065131. The reversal of 20351323065107 is 70156032315302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20351323065107 is a prime.

It is not a weakly prime, because it can be changed into another prime (20351323865107) 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, 10175661532553 + 10175661532554.

It is an arithmetic number, because the mean of its divisors is an integer number (10175661532554).

Almost surely, 2^{20351323065107} is an apocalyptic number.

20351323065107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20351323065107 is an equidigital number, since it uses as much as digits as its factorization.

20351323065107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 20351323065107 in words is "twenty trillion, three hundred fifty-one billion, three hundred twenty-three million, sixty-five thousand, one hundred seven".