18246224111 has 2 divisors, whose sum is σ = 18246224112. Its totient is φ = 18246224110.

The previous prime is 18246224107. The next prime is 18246224131. The reversal of 18246224111 is 11142264281.

It is a weak prime.

It is an emirp because it is prime and its reverse (11142264281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18246224111 - 2² = 18246224107 is a prime.

It is a super-3 number, since 3×18246224111³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18246224131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9123112055 + 9123112056.

It is an arithmetic number, because the mean of its divisors is an integer number (9123112056).

Almost surely, 2^18246224111 is an apocalyptic number.

18246224111 is a deficient number, since it is larger than the sum of its proper divisors (1).

18246224111 is an equidigital number, since it uses as much as digits as its factorization.

18246224111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 32.

Adding to 18246224111 its reverse (11142264281), we get a palindrome (29388488392).

The spelling of 18246224111 in words is "eighteen billion, two hundred forty-six million, two hundred twenty-four thousand, one hundred eleven".