12515515303 has 8 divisors (see below), whose sum is σ = 12751326000. Its totient is φ = 12281729088.

The previous prime is 12515515291. The next prime is 12515515321. The reversal of 12515515303 is 30351551521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12515515303 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 (12515515333) 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 7 ways as a sum of consecutive naturals, for example, 493638 + ... + 518371.

It is an arithmetic number, because the mean of its divisors is an integer number (1593915750).

Almost surely, 2^12515515303 is an apocalyptic number.

12515515303 is a deficient number, since it is larger than the sum of its proper divisors (235810697).

12515515303 is a wasteful number, since it uses less digits than its factorization.

12515515303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012241.

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 12515515303 in words is "twelve billion, five hundred fifteen million, five hundred fifteen thousand, three hundred three".