18412125211 has 2 divisors, whose sum is σ = 18412125212. Its totient is φ = 18412125210.

The previous prime is 18412125203. The next prime is 18412125233. The reversal of 18412125211 is 11252121481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18412125211 - 2³ = 18412125203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18412125211.

It is not a weakly prime, because it can be changed into another prime (18412125241) 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, 9206062605 + 9206062606.

It is an arithmetic number, because the mean of its divisors is an integer number (9206062606).

Almost surely, 2^18412125211 is an apocalyptic number.

18412125211 is a deficient number, since it is larger than the sum of its proper divisors (1).

18412125211 is an equidigital number, since it uses as much as digits as its factorization.

18412125211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 28.

Adding to 18412125211 its reverse (11252121481), we get a palindrome (29664246692).

The spelling of 18412125211 in words is "eighteen billion, four hundred twelve million, one hundred twenty-five thousand, two hundred eleven".