12511503012004 has 24 divisors (see below), whose sum is σ = 23349863869920. Its totient is φ = 5845408089216.

The previous prime is 12511503011999. The next prime is 12511503012011. The reversal of 12511503012004 is 40021030511521.

It is a self number, because there is not a number n which added to its sum of digits gives 12511503012004.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 661834762 + ... + 661853665.

It is an arithmetic number, because the mean of its divisors is an integer number (972910994580).

Almost surely, 2^{12511503012004} is an apocalyptic number.

It is an amenable number.

12511503012004 is a deficient number, since it is larger than the sum of its proper divisors (10838360857916).

12511503012004 is a wasteful number, since it uses less digits than its factorization.

12511503012004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323688587 (or 1323688585 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 12511503012004 its reverse (40021030511521), we get a palindrome (52532533523525).

The spelling of 12511503012004 in words is "twelve trillion, five hundred eleven billion, five hundred three million, twelve thousand, four".