13111606637 has 2 divisors, whose sum is σ = 13111606638. Its totient is φ = 13111606636.

The previous prime is 13111606601. The next prime is 13111606667. The reversal of 13111606637 is 73660611131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8022068356 + 5089538281 = 89566^2 + 71341^2 .

It is an emirp because it is prime and its reverse (73660611131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111606637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13111606597 and 13111606606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111606667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555803318 + 6555803319.

It is an arithmetic number, because the mean of its divisors is an integer number (6555803319).

Almost surely, 2^13111606637 is an apocalyptic number.

It is an amenable number.

13111606637 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111606637 is an equidigital number, since it uses as much as digits as its factorization.

13111606637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The spelling of 13111606637 in words is "thirteen billion, one hundred eleven million, six hundred six thousand, six hundred thirty-seven".