13424110521121 has 2 divisors, whose sum is σ = 13424110521122. Its totient is φ = 13424110521120.

The previous prime is 13424110521119. The next prime is 13424110521191. The reversal of 13424110521121 is 12112501142431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6919004160000 + 6505106361121 = 2630400^2 + 2550511^2 .

It is a cyclic number.

It is not a de Polignac number, because 13424110521121 - 2¹ = 13424110521119 is a prime.

Together with 13424110521119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13424110521121.

It is not a weakly prime, because it can be changed into another prime (13424110521191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6712055260560 + 6712055260561.

It is an arithmetic number, because the mean of its divisors is an integer number (6712055260561).

Almost surely, 2^{13424110521121} is an apocalyptic number.

It is an amenable number.

13424110521121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13424110521121 is an equidigital number, since it uses as much as digits as its factorization.

13424110521121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 28.

Adding to 13424110521121 its reverse (12112501142431), we get a palindrome (25536611663552).

The spelling of 13424110521121 in words is "thirteen trillion, four hundred twenty-four billion, one hundred ten million, five hundred twenty-one thousand, one hundred twenty-one".