13211321191 has 2 divisors, whose sum is σ = 13211321192. Its totient is φ = 13211321190.

The previous prime is 13211321159. The next prime is 13211321203. The reversal of 13211321191 is 19112311231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13211321191 - 2⁵ = 13211321159 is a prime.

It is a super-2 number, since 2×13211321191² (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 (13211321131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605660595 + 6605660596.

It is an arithmetic number, because the mean of its divisors is an integer number (6605660596).

Almost surely, 2^13211321191 is an apocalyptic number.

13211321191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211321191 is an equidigital number, since it uses as much as digits as its factorization.

13211321191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 25.

The spelling of 13211321191 in words is "thirteen billion, two hundred eleven million, three hundred twenty-one thousand, one hundred ninety-one".