13121313211 has 2 divisors, whose sum is σ = 13121313212. Its totient is φ = 13121313210.

The previous prime is 13121313209. The next prime is 13121313223. The reversal of 13121313211 is 11231312131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13121313211 - 2¹ = 13121313209 is a prime.

Together with 13121313209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13121313511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560656605 + 6560656606.

It is an arithmetic number, because the mean of its divisors is an integer number (6560656606).

Almost surely, 2^13121313211 is an apocalyptic number.

13121313211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121313211 is an equidigital number, since it uses as much as digits as its factorization.

13121313211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108, while the sum is 19.

Adding to 13121313211 its reverse (11231312131), we get a palindrome (24352625342).

The spelling of 13121313211 in words is "thirteen billion, one hundred twenty-one million, three hundred thirteen thousand, two hundred eleven".