10320505319987 has 2 divisors, whose sum is σ = 10320505319988. Its totient is φ = 10320505319986.

The previous prime is 10320505319953. The next prime is 10320505320067. The reversal of 10320505319987 is 78991350502301.

10320505319987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10320505319987 - 2²⁶ = 10320438211123 is a prime.

It is not a weakly prime, because it can be changed into another prime (10320505316987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5160252659993 + 5160252659994.

It is an arithmetic number, because the mean of its divisors is an integer number (5160252659994).

Almost surely, 2^{10320505319987} is an apocalyptic number.

10320505319987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10320505319987 is an equidigital number, since it uses as much as digits as its factorization.

10320505319987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 10320505319987 in words is "ten trillion, three hundred twenty billion, five hundred five million, three hundred nineteen thousand, nine hundred eighty-seven".