13311000161 has 2 divisors, whose sum is σ = 13311000162. Its totient is φ = 13311000160.

The previous prime is 13311000139. The next prime is 13311000173. The reversal of 13311000161 is 16100011331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8133334225 + 5177665936 = 90185^2 + 71956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13311000161 is a prime.

It is a super-2 number, since 2×13311000161² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13311000061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6655500080 + 6655500081.

It is an arithmetic number, because the mean of its divisors is an integer number (6655500081).

Almost surely, 2^13311000161 is an apocalyptic number.

It is an amenable number.

13311000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13311000161 is an equidigital number, since it uses as much as digits as its factorization.

13311000161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 13311000161 its reverse (16100011331), we get a palindrome (29411011492).

The spelling of 13311000161 in words is "thirteen billion, three hundred eleven million, one hundred sixty-one", and thus it is an aban number.