11100120043 has 2 divisors, whose sum is σ = 11100120044. Its totient is φ = 11100120042.

The previous prime is 11100120013. The next prime is 11100120077. The reversal of 11100120043 is 34002100111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11100120043 - 2²¹ = 11098022891 is a prime.

It is not a weakly prime, because it can be changed into another prime (11100120013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550060021 + 5550060022.

It is an arithmetic number, because the mean of its divisors is an integer number (5550060022).

Almost surely, 2^11100120043 is an apocalyptic number.

11100120043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100120043 is an equidigital number, since it uses as much as digits as its factorization.

11100120043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11100120043 its reverse (34002100111), we get a palindrome (45102220154).

It can be divided in two parts, 111001 and 20043, that added together give a square (131044 = 362²).

The spelling of 11100120043 in words is "eleven billion, one hundred million, one hundred twenty thousand, forty-three".