13111606601 has 2 divisors, whose sum is σ = 13111606602. Its totient is φ = 13111606600.

The previous prime is 13111606597. The next prime is 13111606637. The reversal of 13111606601 is 10660611131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12851623225 + 259983376 = 113365^2 + 16124^2 .

It is an emirp because it is prime and its reverse (10660611131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13111606601 - 2² = 13111606597 is a prime.

It is not a weakly prime, because it can be changed into another prime (13111606301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555803300 + 6555803301.

It is an arithmetic number, because the mean of its divisors is an integer number (6555803301).

Almost surely, 2^13111606601 is an apocalyptic number.

It is an amenable number.

13111606601 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111606601 is an equidigital number, since it uses as much as digits as its factorization.

13111606601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 13111606601 in words is "thirteen billion, one hundred eleven million, six hundred six thousand, six hundred one".