12503563031421 has 48 divisors (see below), whose sum is σ = 22517576060928. Its totient is φ = 6495260205600.

The previous prime is 12503563031411. The next prime is 12503563031441. The reversal of 12503563031421 is 12413036530521.

12503563031421 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 3 + 5 + 630 + 3 + 14 + 2 + 1 = 666.

It is not a de Polignac number, because 12503563031421 - 2³⁰ = 12502489289597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503563031411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84005256 + ... + 84153966.

It is an arithmetic number, because the mean of its divisors is an integer number (469116167936).

Almost surely, 2^{12503563031421} is an apocalyptic number.

12503563031421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12503563031421 is a deficient number, since it is larger than the sum of its proper divisors (10014013029507).

12503563031421 is a wasteful number, since it uses less digits than its factorization.

12503563031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270062 (or 270059 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 12503563031421 its reverse (12413036530521), we get a palindrome (24916599561942).

The spelling of 12503563031421 in words is "twelve trillion, five hundred three billion, five hundred sixty-three million, thirty-one thousand, four hundred twenty-one".