13093304581 has 4 divisors (see below), whose sum is σ = 14963776672. Its totient is φ = 11222832492.

The previous prime is 13093304563. The next prime is 13093304591. The reversal of 13093304581 is 18540339031.

13093304581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13093304581 - 2²³ = 13084915973 is a prime.

It is a super-2 number, since 2×13093304581² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13093304581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13093304501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935236035 + ... + 935236048.

It is an arithmetic number, because the mean of its divisors is an integer number (3740944168).

Almost surely, 2^13093304581 is an apocalyptic number.

It is an amenable number.

13093304581 is a deficient number, since it is larger than the sum of its proper divisors (1870472091).

13093304581 is an equidigital number, since it uses as much as digits as its factorization.

13093304581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870472090.

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 13093304581 in words is "thirteen billion, ninety-three million, three hundred four thousand, five hundred eighty-one".