13211099989 has 2 divisors, whose sum is σ = 13211099990. Its totient is φ = 13211099988.

The previous prime is 13211099987. The next prime is 13211100031. The reversal of 13211099989 is 98999011231.

It is a happy number.

13211099989 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., 13074092964 + 137007025 = 114342^2 + 11705^2 .

It is a cyclic number.

It is not a de Polignac number, because 13211099989 - 2¹ = 13211099987 is a prime.

Together with 13211099987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13211099983) 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, 6605549994 + 6605549995.

It is an arithmetic number, because the mean of its divisors is an integer number (6605549995).

Almost surely, 2^13211099989 is an apocalyptic number.

It is an amenable number.

13211099989 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211099989 is an equidigital number, since it uses as much as digits as its factorization.

13211099989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 52.

The spelling of 13211099989 in words is "thirteen billion, two hundred eleven million, ninety-nine thousand, nine hundred eighty-nine".