12556141635031 has 4 divisors (see below), whose sum is σ = 12556149577000. Its totient is φ = 12556133693064.

The previous prime is 12556141634987. The next prime is 12556141635097. The reversal of 12556141635031 is 13053614165521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12556141635031 - 2⁴¹ = 10357118379479 is a prime.

It is a super-2 number, since 2×12556141635031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12556141630031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703056 + ... + 5060293.

It is an arithmetic number, because the mean of its divisors is an integer number (3139037394250).

Almost surely, 2^{12556141635031} is an apocalyptic number.

12556141635031 is a deficient number, since it is larger than the sum of its proper divisors (7941969).

12556141635031 is an equidigital number, since it uses as much as digits as its factorization.

12556141635031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7941968.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 12556141635031 in words is "twelve trillion, five hundred fifty-six billion, one hundred forty-one million, six hundred thirty-five thousand, thirty-one".