11112121111843 has 2 divisors, whose sum is σ = 11112121111844. Its totient is φ = 11112121111842.

The previous prime is 11112121111841. The next prime is 11112121111853. The reversal of 11112121111843 is 34811112121111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11112121111843 - 2¹ = 11112121111841 is a prime.

Together with 11112121111841, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11112121111841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556060555921 + 5556060555922.

It is an arithmetic number, because the mean of its divisors is an integer number (5556060555922).

Almost surely, 2^{11112121111843} is an apocalyptic number.

11112121111843 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112121111843 is an equidigital number, since it uses as much as digits as its factorization.

11112121111843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 28.

Adding to 11112121111843 its reverse (34811112121111), we get a palindrome (45923233232954).

The spelling of 11112121111843 in words is "eleven trillion, one hundred twelve billion, one hundred twenty-one million, one hundred eleven thousand, eight hundred forty-three".