11111300043 has 4 divisors (see below), whose sum is σ = 14815066728. Its totient is φ = 7407533360.

The previous prime is 11111300041. The next prime is 11111300047. The reversal of 11111300043 is 34000311111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11111300043 - 2¹ = 11111300041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111299995 and 11111300031.

It is not an unprimeable number, because it can be changed into a prime (11111300041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851883338 + ... + 1851883343.

It is an arithmetic number, because the mean of its divisors is an integer number (3703766682).

Almost surely, 2^11111300043 is an apocalyptic number.

11111300043 is a deficient number, since it is larger than the sum of its proper divisors (3703766685).

11111300043 is an equidigital number, since it uses as much as digits as its factorization.

11111300043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703766684.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11111300043 its reverse (34000311111), we get a palindrome (45111611154).

The spelling of 11111300043 in words is "eleven billion, one hundred eleven million, three hundred thousand, forty-three".