111110100043 has 2 divisors, whose sum is σ = 111110100044. Its totient is φ = 111110100042.

The previous prime is 111110100041. The next prime is 111110100067. The reversal of 111110100043 is 340001011111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111110100043 - 2¹ = 111110100041 is a prime.

Together with 111110100041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 111110099996 and 111110100032.

It is not a weakly prime, because it can be changed into another prime (111110100041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555050021 + 55555050022.

It is an arithmetic number, because the mean of its divisors is an integer number (55555050022).

Almost surely, 2^111110100043 is an apocalyptic number.

111110100043 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110100043 is an equidigital number, since it uses as much as digits as its factorization.

111110100043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111110100043 its reverse (340001011111), we get a palindrome (451111111154).

The spelling of 111110100043 in words is "one hundred eleven billion, one hundred ten million, one hundred thousand, forty-three".