12671503221247 has 16 divisors (see below), whose sum is σ = 13811105968128. Its totient is φ = 11555462953440.

The previous prime is 12671503221241. The next prime is 12671503221253. The reversal of 12671503221247 is 74212230517621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12671503221241) and next prime (12671503221253).

It is a cyclic number.

It is not a de Polignac number, because 12671503221247 - 2³ = 12671503221239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12671503221241) 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 15 ways as a sum of consecutive naturals, for example, 35245798 + ... + 35603500.

It is an arithmetic number, because the mean of its divisors is an integer number (863194123008).

Almost surely, 2^{12671503221247} is an apocalyptic number.

12671503221247 is a deficient number, since it is larger than the sum of its proper divisors (1139602746881).

12671503221247 is a wasteful number, since it uses less digits than its factorization.

12671503221247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390630.

The product of its (nonzero) digits is 282240, while the sum is 43.

Adding to 12671503221247 its reverse (74212230517621), we get a palindrome (86883733738868).

The spelling of 12671503221247 in words is "twelve trillion, six hundred seventy-one billion, five hundred three million, two hundred twenty-one thousand, two hundred forty-seven".