13442007384521 has 2 divisors, whose sum is σ = 13442007384522. Its totient is φ = 13442007384520.

The previous prime is 13442007384437. The next prime is 13442007384577. The reversal of 13442007384521 is 12548370024431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13403184593296 + 38822791225 = 3661036^2 + 197035^2 .

It is a cyclic number.

It is not a de Polignac number, because 13442007384521 - 2¹⁸ = 13442007122377 is a prime.

It is not a weakly prime, because it can be changed into another prime (13442007384821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721003692260 + 6721003692261.

It is an arithmetic number, because the mean of its divisors is an integer number (6721003692261).

Almost surely, 2^{13442007384521} is an apocalyptic number.

It is an amenable number.

13442007384521 is a deficient number, since it is larger than the sum of its proper divisors (1).

13442007384521 is an equidigital number, since it uses as much as digits as its factorization.

13442007384521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 13442007384521 in words is "thirteen trillion, four hundred forty-two billion, seven million, three hundred eighty-four thousand, five hundred twenty-one".