5115431312523 has 24 divisors (see below), whose sum is σ = 8464675564800. Its totient is φ = 2916127211184.

The previous prime is 5115431312483. The next prime is 5115431312533. The reversal of 5115431312523 is 3252131345115.

It is a happy number.

5115431312523 is a `hidden beast` number, since 5 + 115 + 4 + 3 + 1 + 3 + 12 + 523 = 666.

It is not a de Polignac number, because 5115431312523 - 2⁹ = 5115431312011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5115431312533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96867783 + ... + 96920576.

It is an arithmetic number, because the mean of its divisors is an integer number (352694815200).

Almost surely, 2^{5115431312523} is an apocalyptic number.

5115431312523 is a deficient number, since it is larger than the sum of its proper divisors (3349244252277).

5115431312523 is a wasteful number, since it uses less digits than its factorization.

5115431312523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193788791 (or 193788788 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

Adding to 5115431312523 its reverse (3252131345115), we get a palindrome (8367562657638).

The spelling of 5115431312523 in words is "five trillion, one hundred fifteen billion, four hundred thirty-one million, three hundred twelve thousand, five hundred twenty-three".