15113108243 has 4 divisors (see below), whose sum is σ = 15369262680. Its totient is φ = 14856953808.

The previous prime is 15113108237. The next prime is 15113108261. The reversal of 15113108243 is 34280131151.

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

It is a cyclic number.

It is not a de Polignac number, because 15113108243 - 2²⁰ = 15112059667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15113108233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128077130 + ... + 128077247.

It is an arithmetic number, because the mean of its divisors is an integer number (3842315670).

Almost surely, 2^15113108243 is an apocalyptic number.

15113108243 is a deficient number, since it is larger than the sum of its proper divisors (256154437).

15113108243 is an equidigital number, since it uses as much as digits as its factorization.

15113108243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256154436.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 15113108243 its reverse (34280131151), we get a palindrome (49393239394).

The spelling of 15113108243 in words is "fifteen billion, one hundred thirteen million, one hundred eight thousand, two hundred forty-three".