13211321131 has 2 divisors, whose sum is σ = 13211321132. Its totient is φ = 13211321130.

The previous prime is 13211321107. The next prime is 13211321153. The reversal of 13211321131 is 13112311231.

13211321131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (13112311231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13211321131 is a prime.

It is a super-2 number, since 2×13211321131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13211321099 and 13211321108.

It is not a weakly prime, because it can be changed into another prime (13211321191) 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, 6605660565 + 6605660566.

It is an arithmetic number, because the mean of its divisors is an integer number (6605660566).

Almost surely, 2^13211321131 is an apocalyptic number.

13211321131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211321131 is an equidigital number, since it uses as much as digits as its factorization.

13211321131 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 13211321131 its reverse (13112311231), we get a palindrome (26323632362).

The spelling of 13211321131 in words is "thirteen billion, two hundred eleven million, three hundred twenty-one thousand, one hundred thirty-one".