12123968867 has 2 divisors, whose sum is σ = 12123968868. Its totient is φ = 12123968866.

The previous prime is 12123968861. The next prime is 12123968873. The reversal of 12123968867 is 76886932121.

It is a balanced prime because it is at equal distance from previous prime (12123968861) and next prime (12123968873).

It is a cyclic number.

It is not a de Polignac number, because 12123968867 - 2⁶ = 12123968803 is a prime.

It is not a weakly prime, because it can be changed into another prime (12123968861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061984433 + 6061984434.

It is an arithmetic number, because the mean of its divisors is an integer number (6061984434).

Almost surely, 2^12123968867 is an apocalyptic number.

12123968867 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123968867 is an equidigital number, since it uses as much as digits as its factorization.

12123968867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The spelling of 12123968867 in words is "twelve billion, one hundred twenty-three million, nine hundred sixty-eight thousand, eight hundred sixty-seven".