12530055003521 has 32 divisors (see below), whose sum is σ = 13922921779200. Its totient is φ = 11180112480000.

The previous prime is 12530055003511. The next prime is 12530055003541.

12530055003521 is nontrivially palindromic in base 10.

12530055003521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12530055003521 - 2⁴² = 8132008492417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12530055003511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1177742120 + ... + 1177752758.

It is an arithmetic number, because the mean of its divisors is an integer number (435091305600).

Almost surely, 2^{12530055003521} is an apocalyptic number.

12530055003521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12530055003521 is a deficient number, since it is larger than the sum of its proper divisors (1392866775679).

12530055003521 is a wasteful number, since it uses less digits than its factorization.

12530055003521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13421.

The product of its (nonzero) digits is 22500, while the sum is 32.

It can be divided in two parts, 1253005 and 5003521, that added together give a palindrome (6256526).

The spelling of 12530055003521 in words is "twelve trillion, five hundred thirty billion, fifty-five million, three thousand, five hundred twenty-one".