13208867381 has 2 divisors, whose sum is σ = 13208867382. Its totient is φ = 13208867380.

The previous prime is 13208867351. The next prime is 13208867461. The reversal of 13208867381 is 18376880231.

It is a happy number.

13208867381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7680944881 + 5527922500 = 87641^2 + 74350^2 .

It is a cyclic number.

It is not a de Polignac number, because 13208867381 - 2¹⁰ = 13208866357 is a prime.

It is a super-2 number, since 2×13208867381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13208867351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6604433690 + 6604433691.

It is an arithmetic number, because the mean of its divisors is an integer number (6604433691).

Almost surely, 2^13208867381 is an apocalyptic number.

It is an amenable number.

13208867381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13208867381 is an equidigital number, since it uses as much as digits as its factorization.

13208867381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 13208867381 in words is "thirteen billion, two hundred eight million, eight hundred sixty-seven thousand, three hundred eighty-one".