13971678113 has 2 divisors, whose sum is σ = 13971678114. Its totient is φ = 13971678112.

The previous prime is 13971678079. The next prime is 13971678131. The reversal of 13971678113 is 31187617931.

It is a happy number.

Together with next prime (13971678131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11879256064 + 2092422049 = 108992^2 + 45743^2 .

It is a cyclic number.

It is not a de Polignac number, because 13971678113 - 2⁸ = 13971677857 is a prime.

It is not a weakly prime, because it can be changed into another prime (13971678163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6985839056 + 6985839057.

It is an arithmetic number, because the mean of its divisors is an integer number (6985839057).

Almost surely, 2^13971678113 is an apocalyptic number.

It is an amenable number.

13971678113 is a deficient number, since it is larger than the sum of its proper divisors (1).

13971678113 is an equidigital number, since it uses as much as digits as its factorization.

13971678113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 47.

The spelling of 13971678113 in words is "thirteen billion, nine hundred seventy-one million, six hundred seventy-eight thousand, one hundred thirteen".