12917333971 has 4 divisors (see below), whose sum is σ = 13192170912. Its totient is φ = 12642497032.

The previous prime is 12917333911. The next prime is 12917333981. The reversal of 12917333971 is 17933371921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12917333971 - 2⁹ = 12917333459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12917333911) 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, 137418400 + ... + 137418493.

It is an arithmetic number, because the mean of its divisors is an integer number (3298042728).

Almost surely, 2^12917333971 is an apocalyptic number.

12917333971 is a deficient number, since it is larger than the sum of its proper divisors (274836941).

12917333971 is an equidigital number, since it uses as much as digits as its factorization.

12917333971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274836940.

The product of its digits is 214326, while the sum is 46.

The spelling of 12917333971 in words is "twelve billion, nine hundred seventeen million, three hundred thirty-three thousand, nine hundred seventy-one".