12321100279 has 2 divisors, whose sum is σ = 12321100280. Its totient is φ = 12321100278.

The previous prime is 12321100247. The next prime is 12321100289. The reversal of 12321100279 is 97200112321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12321100279 - 2⁵ = 12321100247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12321100219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160550139 + 6160550140.

It is an arithmetic number, because the mean of its divisors is an integer number (6160550140).

Almost surely, 2^12321100279 is an apocalyptic number.

12321100279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12321100279 is an equidigital number, since it uses as much as digits as its factorization.

12321100279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 12321100279 in words is "twelve billion, three hundred twenty-one million, one hundred thousand, two hundred seventy-nine".