12123121159 has 2 divisors, whose sum is σ = 12123121160. Its totient is φ = 12123121158.

The previous prime is 12123121097. The next prime is 12123121163. The reversal of 12123121159 is 95112132121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12123121159 - 2¹¹ = 12123119111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123124159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061560579 + 6061560580.

It is an arithmetic number, because the mean of its divisors is an integer number (6061560580).

Almost surely, 2^12123121159 is an apocalyptic number.

12123121159 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123121159 is an equidigital number, since it uses as much as digits as its factorization.

12123121159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 28.

The spelling of 12123121159 in words is "twelve billion, one hundred twenty-three million, one hundred twenty-one thousand, one hundred fifty-nine".