13044012321013 has 4 divisors (see below), whose sum is σ = 13048639500960. Its totient is φ = 13039385141068.

The previous prime is 13044012320939. The next prime is 13044012321029. The reversal of 13044012321013 is 31012321044031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13044012321013 - 2²¹ = 13044010223861 is a prime.

It is a super-2 number, since 2×13044012321013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13044012327013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313585745 + ... + 2313591382.

It is an arithmetic number, because the mean of its divisors is an integer number (3262159875240).

Almost surely, 2^{13044012321013} is an apocalyptic number.

It is an amenable number.

13044012321013 is a deficient number, since it is larger than the sum of its proper divisors (4627179947).

13044012321013 is an equidigital number, since it uses as much as digits as its factorization.

13044012321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627179946.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13044012321013 its reverse (31012321044031), we get a palindrome (44056333365044).

The spelling of 13044012321013 in words is "thirteen trillion, forty-four billion, twelve million, three hundred twenty-one thousand, thirteen".