100111043 has 2 divisors, whose sum is σ = 100111044. Its totient is φ = 100111042.

The previous prime is 100111007. The next prime is 100111049. The reversal of 100111043 is 340111001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100111043 - 2¹⁰ = 100110019 is a prime.

It is not a weakly prime, because it can be changed into another prime (100111049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055521 + 50055522.

It is an arithmetic number, because the mean of its divisors is an integer number (50055522).

Almost surely, 2^100111043 is an apocalyptic number.

100111043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111043 is an equidigital number, since it uses as much as digits as its factorization.

100111043 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 11.

The square root of 100111043 is about 10005.5506095367. The cubic root of 100111043 is about 464.3306251242.

Adding to 100111043 its reverse (340111001), we get a palindrome (440222044).

The spelling of 100111043 in words is "one hundred million, one hundred eleven thousand, forty-three".