12501135535 has 24 divisors (see below), whose sum is σ = 17458842816. Its totient is φ = 8568141120.

The previous prime is 12501135509. The next prime is 12501135583. The reversal of 12501135535 is 53553110521.

It is not a de Polignac number, because 12501135535 - 2¹⁹ = 12500611247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12501135497 and 12501135506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 560650 + ... + 582520.

It is an arithmetic number, because the mean of its divisors is an integer number (727451784).

Almost surely, 2^12501135535 is an apocalyptic number.

12501135535 is a deficient number, since it is larger than the sum of its proper divisors (4957707281).

12501135535 is a wasteful number, since it uses less digits than its factorization.

12501135535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24223 (or 24216 counting only the distinct ones).

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

The spelling of 12501135535 in words is "twelve billion, five hundred one million, one hundred thirty-five thousand, five hundred thirty-five".