13315319985 has 128 divisors (see below), whose sum is σ = 25488691200. Its totient is φ = 5863173120.

The previous prime is 13315319971. The next prime is 13315319999. The reversal of 13315319985 is 58991351331.

13315319985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13315319971) and next prime (13315319999).

It is not a de Polignac number, because 13315319985 - 2¹¹ = 13315317937 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15182367 + ... + 15183243.

It is an arithmetic number, because the mean of its divisors is an integer number (199130400).

Almost surely, 2^13315319985 is an apocalyptic number.

13315319985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13315319985 is a deficient number, since it is larger than the sum of its proper divisors (12173371215).

13315319985 is a wasteful number, since it uses less digits than its factorization.

13315319985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111.

The product of its digits is 437400, while the sum is 48.

The spelling of 13315319985 in words is "thirteen billion, three hundred fifteen million, three hundred nineteen thousand, nine hundred eighty-five".