13501301421005 has 4 divisors (see below), whose sum is σ = 16201561705212. Its totient is φ = 10801041136800.

The previous prime is 13501301420987. The next prime is 13501301421067. The reversal of 13501301421005 is 50012410310531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10400863651369 + 3100437769636 = 3225037^2 + 1760806^2 .

It is not a de Polignac number, because 13501301421005 - 2⁶ = 13501301420941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350130142096 + ... + 1350130142105.

It is an arithmetic number, because the mean of its divisors is an integer number (4050390426303).

Almost surely, 2^{13501301421005} is an apocalyptic number.

It is an amenable number.

13501301421005 is a deficient number, since it is larger than the sum of its proper divisors (2700260284207).

13501301421005 is an equidigital number, since it uses as much as digits as its factorization.

13501301421005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700260284206.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 13501301421005 its reverse (50012410310531), we get a palindrome (63513711731536).

The spelling of 13501301421005 in words is "thirteen trillion, five hundred one billion, three hundred one million, four hundred twenty-one thousand, five".