12887503238 has 4 divisors (see below), whose sum is σ = 19331254860. Its totient is φ = 6443751618.

The previous prime is 12887503229. The next prime is 12887503253. The reversal of 12887503238 is 83230578821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83230578821 = 13 ⋅6402352217.

It is a junction number, because it is equal to n+sod(n) for n = 12887503192 and 12887503201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3221875808 + ... + 3221875811.

It is an arithmetic number, because the mean of its divisors is an integer number (4832813715).

Almost surely, 2^12887503238 is an apocalyptic number.

12887503238 is a deficient number, since it is larger than the sum of its proper divisors (6443751622).

12887503238 is an equidigital number, since it uses as much as digits as its factorization.

12887503238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443751621.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 12887503238 in words is "twelve billion, eight hundred eighty-seven million, five hundred three thousand, two hundred thirty-eight".