13113129493 has 4 divisors (see below), whose sum is σ = 13127245740. Its totient is φ = 13099013248.

The previous prime is 13113129443. The next prime is 13113129527. The reversal of 13113129493 is 39492131131.

13113129493 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 an emirpimes, since its reverse is a distinct semiprime: 39492131131 = 67 ⋅589434793.

It can be written as a sum of positive squares in 2 ways, for example, as 6942555684 + 6170573809 = 83322^2 + 78553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13113129493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113129443) 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, 7056730 + ... + 7058587.

It is an arithmetic number, because the mean of its divisors is an integer number (3281811435).

Almost surely, 2^13113129493 is an apocalyptic number.

It is an amenable number.

13113129493 is a deficient number, since it is larger than the sum of its proper divisors (14116247).

13113129493 is an equidigital number, since it uses as much as digits as its factorization.

13113129493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14116246.

The product of its digits is 17496, while the sum is 37.

The spelling of 13113129493 in words is "thirteen billion, one hundred thirteen million, one hundred twenty-nine thousand, four hundred ninety-three".