12126018259 has 2 divisors, whose sum is σ = 12126018260. Its totient is φ = 12126018258.

The previous prime is 12126018221. The next prime is 12126018319. The reversal of 12126018259 is 95281062121.

12126018259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12126018259 - 2²¹ = 12123921107 is a prime.

It is not a weakly prime, because it can be changed into another prime (12126019259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063009129 + 6063009130.

It is an arithmetic number, because the mean of its divisors is an integer number (6063009130).

Almost surely, 2^12126018259 is an apocalyptic number.

12126018259 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126018259 is an equidigital number, since it uses as much as digits as its factorization.

12126018259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 37.

The spelling of 12126018259 in words is "twelve billion, one hundred twenty-six million, eighteen thousand, two hundred fifty-nine".