100342043 has 2 divisors, whose sum is σ = 100342044. Its totient is φ = 100342042.

The previous prime is 100342003. The next prime is 100342049. The reversal of 100342043 is 340243001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100342043 - 2⁶ = 100341979 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100342049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50171021 + 50171022.

It is an arithmetic number, because the mean of its divisors is an integer number (50171022).

Almost surely, 2^100342043 is an apocalyptic number.

100342043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100342043 is an equidigital number, since it uses as much as digits as its factorization.

100342043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 100342043 is about 10017.0875507804. The cubic root of 100342043 is about 464.6874887891.

Adding to 100342043 its reverse (340243001), we get a palindrome (440585044).

The spelling of 100342043 in words is "one hundred million, three hundred forty-two thousand, forty-three".