12321228671 has 2 divisors, whose sum is σ = 12321228672. Its totient is φ = 12321228670.

The previous prime is 12321228613. The next prime is 12321228679. The reversal of 12321228671 is 17682212321.

It is a strong prime.

It is an emirp because it is prime and its reverse (17682212321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12321228671 - 2¹⁴ = 12321212287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321228679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160614335 + 6160614336.

It is an arithmetic number, because the mean of its divisors is an integer number (6160614336).

Almost surely, 2^12321228671 is an apocalyptic number.

12321228671 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321228671 is an equidigital number, since it uses as much as digits as its factorization.

12321228671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The spelling of 12321228671 in words is "twelve billion, three hundred twenty-one million, two hundred twenty-eight thousand, six hundred seventy-one".