13321332191 has 2 divisors, whose sum is σ = 13321332192. Its totient is φ = 13321332190.

The previous prime is 13321332173. The next prime is 13321332203. The reversal of 13321332191 is 19123312331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13321332191 - 2⁶ = 13321332127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13321332131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660666095 + 6660666096.

It is an arithmetic number, because the mean of its divisors is an integer number (6660666096).

Almost surely, 2^13321332191 is an apocalyptic number.

13321332191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13321332191 is an equidigital number, since it uses as much as digits as its factorization.

13321332191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 29.

The spelling of 13321332191 in words is "thirteen billion, three hundred twenty-one million, three hundred thirty-two thousand, one hundred ninety-one".