13221032131 has 2 divisors, whose sum is σ = 13221032132. Its totient is φ = 13221032130.

The previous prime is 13221032129. The next prime is 13221032137. The reversal of 13221032131 is 13123012231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13221032131 - 2¹ = 13221032129 is a prime.

It is a super-2 number, since 2×13221032131² (a number of 21 digits) contains 22 as substring.

Together with 13221032129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13221032099 and 13221032108.

It is not a weakly prime, because it can be changed into another prime (13221032137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610516065 + 6610516066.

It is an arithmetic number, because the mean of its divisors is an integer number (6610516066).

Almost surely, 2^13221032131 is an apocalyptic number.

13221032131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221032131 is an equidigital number, since it uses as much as digits as its factorization.

13221032131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13221032131 its reverse (13123012231), we get a palindrome (26344044362).

The spelling of 13221032131 in words is "thirteen billion, two hundred twenty-one million, thirty-two thousand, one hundred thirty-one".