13441835921 has 2 divisors, whose sum is σ = 13441835922. Its totient is φ = 13441835920.

The previous prime is 13441835903. The next prime is 13441835951. The reversal of 13441835921 is 12953814431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12415530625 + 1026305296 = 111425^2 + 32036^2 .

It is a cyclic number.

It is not a de Polignac number, because 13441835921 - 2¹⁰ = 13441834897 is a prime.

It is not a weakly prime, because it can be changed into another prime (13441835951) 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, 6720917960 + 6720917961.

It is an arithmetic number, because the mean of its divisors is an integer number (6720917961).

Almost surely, 2^13441835921 is an apocalyptic number.

It is an amenable number.

13441835921 is a deficient number, since it is larger than the sum of its proper divisors (1).

13441835921 is an equidigital number, since it uses as much as digits as its factorization.

13441835921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 41.

The spelling of 13441835921 in words is "thirteen billion, four hundred forty-one million, eight hundred thirty-five thousand, nine hundred twenty-one".