14131311221 has 2 divisors, whose sum is σ = 14131311222. Its totient is φ = 14131311220.

The previous prime is 14131311193. The next prime is 14131311223. The reversal of 14131311221 is 12211313141.

14131311221 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 can be written as a sum of positive squares in only one way, i.e., 14130076900 + 1234321 = 118870^2 + 1111^2 .

It is a cyclic number.

It is not a de Polignac number, because 14131311221 - 2²² = 14127116917 is a prime.

Together with 14131311223, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 14131311193 and 14131311202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14131311223) 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, 7065655610 + 7065655611.

It is an arithmetic number, because the mean of its divisors is an integer number (7065655611).

Almost surely, 2^14131311221 is an apocalyptic number.

It is an amenable number.

14131311221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14131311221 is an equidigital number, since it uses as much as digits as its factorization.

14131311221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 20.

Adding to 14131311221 its reverse (12211313141), we get a palindrome (26342624362).

The spelling of 14131311221 in words is "fourteen billion, one hundred thirty-one million, three hundred eleven thousand, two hundred twenty-one".