13319148991 has 4 divisors (see below), whose sum is σ = 13319405632. Its totient is φ = 13318892352.

The previous prime is 13319148989. The next prime is 13319149007. The reversal of 13319148991 is 19984191331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19984191331 = 13 ⋅1537245487.

It is a cyclic number.

It is not a de Polignac number, because 13319148991 - 2¹ = 13319148989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13319148691) 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 in 3 ways as a sum of consecutive naturals, for example, 19986 + ... + 164431.

It is an arithmetic number, because the mean of its divisors is an integer number (3329851408).

Almost surely, 2^13319148991 is an apocalyptic number.

13319148991 is a deficient number, since it is larger than the sum of its proper divisors (256641).

13319148991 is an equidigital number, since it uses as much as digits as its factorization.

13319148991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256640.

The product of its digits is 209952, while the sum is 49.

The spelling of 13319148991 in words is "thirteen billion, three hundred nineteen million, one hundred forty-eight thousand, nine hundred ninety-one".