13085131069 has 2 divisors, whose sum is σ = 13085131070. Its totient is φ = 13085131068.

The previous prime is 13085131051. The next prime is 13085131133. The reversal of 13085131069 is 96013158031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9180130969 + 3905000100 = 95813^2 + 62490^2 .

It is a cyclic number.

It is not a de Polignac number, because 13085131069 - 2¹¹ = 13085129021 is a prime.

It is a super-2 number, since 2×13085131069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13085131009) 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, 6542565534 + 6542565535.

It is an arithmetic number, because the mean of its divisors is an integer number (6542565535).

Almost surely, 2^13085131069 is an apocalyptic number.

It is an amenable number.

13085131069 is a deficient number, since it is larger than the sum of its proper divisors (1).

13085131069 is an equidigital number, since it uses as much as digits as its factorization.

13085131069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 13085131069 in words is "thirteen billion, eighty-five million, one hundred thirty-one thousand, sixty-nine".