13321133081 has 2 divisors, whose sum is σ = 13321133082. Its totient is φ = 13321133080.

The previous prime is 13321133047. The next prime is 13321133083. The reversal of 13321133081 is 18033112331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7277625481 + 6043507600 = 85309^2 + 77740^2 .

It is a cyclic number.

It is not a de Polignac number, because 13321133081 - 2³⁰ = 12247391257 is a prime.

It is a super-2 number, since 2×13321133081² (a number of 21 digits) contains 22 as substring.

Together with 13321133083, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13321133081.

It is not a weakly prime, because it can be changed into another prime (13321133083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660566540 + 6660566541.

It is an arithmetic number, because the mean of its divisors is an integer number (6660566541).

Almost surely, 2^13321133081 is an apocalyptic number.

It is an amenable number.

13321133081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321133081 is an equidigital number, since it uses as much as digits as its factorization.

13321133081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 13321133081 in words is "thirteen billion, three hundred twenty-one million, one hundred thirty-three thousand, eighty-one".