13820075117 has 4 divisors (see below), whose sum is σ = 13880425020. Its totient is φ = 13759725216.

The previous prime is 13820075083. The next prime is 13820075141. The reversal of 13820075117 is 71157002831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12542656036 + 1277419081 = 111994^2 + 35741^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13820075117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13820075197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30174608 + ... + 30175065.

It is an arithmetic number, because the mean of its divisors is an integer number (3470106255).

Almost surely, 2^13820075117 is an apocalyptic number.

It is an amenable number.

13820075117 is a deficient number, since it is larger than the sum of its proper divisors (60349903).

13820075117 is an equidigital number, since it uses as much as digits as its factorization.

13820075117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60349902.

The product of its (nonzero) digits is 11760, while the sum is 35.

Adding to 13820075117 its reverse (71157002831), we get a palindrome (84977077948).

The spelling of 13820075117 in words is "thirteen billion, eight hundred twenty million, seventy-five thousand, one hundred seventeen".