100111111222043 has 2 divisors, whose sum is σ = 100111111222044. Its totient is φ = 100111111222042.

The previous prime is 100111111221971. The next prime is 100111111222151. The reversal of 100111111222043 is 340222111111001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100111111222043 - 2³⁴ = 100093931352859 is a prime.

It is a super-2 number, since 2×100111111222043² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100111111522043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055555611021 + 50055555611022.

It is an arithmetic number, because the mean of its divisors is an integer number (50055555611022).

Almost surely, 2^{100111111222043} is an apocalyptic number.

100111111222043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111111222043 is an equidigital number, since it uses as much as digits as its factorization.

100111111222043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 100111111222043 its reverse (340222111111001), we get a palindrome (440333222333044).

The spelling of 100111111222043 in words is "one hundred trillion, one hundred eleven billion, one hundred eleven million, two hundred twenty-two thousand, forty-three".