100345043 has 2 divisors, whose sum is σ = 100345044. Its totient is φ = 100345042.

The previous prime is 100345039. The next prime is 100345057. The reversal of 100345043 is 340543001.

It is a weak prime.

It is an emirp because it is prime and its reverse (340543001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100345043 - 2² = 100345039 is a prime.

It is not a weakly prime, because it can be changed into another prime (100345013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50172521 + 50172522.

It is an arithmetic number, because the mean of its divisors is an integer number (50172522).

Almost surely, 2^100345043 is an apocalyptic number.

100345043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100345043 is an equidigital number, since it uses as much as digits as its factorization.

100345043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 100345043 is about 10017.2372937851. The cubic root of 100345043 is about 464.6921197777.

Adding to 100345043 its reverse (340543001), we get a palindrome (440888044).

The spelling of 100345043 in words is "one hundred million, three hundred forty-five thousand, forty-three".