12556010834331 has 32 divisors (see below), whose sum is σ = 17741648877120. Its totient is φ = 7884637286400.

The previous prime is 12556010834321. The next prime is 12556010834359. The reversal of 12556010834331 is 13343801065521.

It is not a de Polignac number, because 12556010834331 - 2¹⁰ = 12556010833307 is a prime.

It is a super-2 number, since 2×12556010834331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12556010834321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177176701 + ... + 177247553.

It is an arithmetic number, because the mean of its divisors is an integer number (554426527410).

Almost surely, 2^{12556010834331} is an apocalyptic number.

12556010834331 is a deficient number, since it is larger than the sum of its proper divisors (5185638042789).

12556010834331 is a wasteful number, since it uses less digits than its factorization.

12556010834331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120607.

The product of its (nonzero) digits is 259200, while the sum is 42.

Adding to 12556010834331 its reverse (13343801065521), we get a palindrome (25899811899852).

The spelling of 12556010834331 in words is "twelve trillion, five hundred fifty-six billion, ten million, eight hundred thirty-four thousand, three hundred thirty-one".