11100043 has 2 divisors, whose sum is σ = 11100044. Its totient is φ = 11100042.

The previous prime is 11100041. The next prime is 11100049. The reversal of 11100043 is 34000111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11100043 - 2¹ = 11100041 is a prime.

Together with 11100041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11100041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550021 + 5550022.

It is an arithmetic number, because the mean of its divisors is an integer number (5550022).

Almost surely, 2^11100043 is an apocalyptic number.

11100043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100043 is an equidigital number, since it uses as much as digits as its factorization.

11100043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11100043 is about 3331.6727030127. The cubic root of 11100043 is about 223.0701984954.

Adding to 11100043 its reverse (34000111), we get a palindrome (45100154).

The spelling of 11100043 in words is "eleven million, one hundred thousand, forty-three".