100434811 has 4 divisors (see below), whose sum is σ = 100481832. Its totient is φ = 100387792.

The previous prime is 100434769. The next prime is 100434821. The reversal of 100434811 is 118434001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100434811 - 2²⁵ = 66880379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100434821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20146 + ... + 24631.

It is an arithmetic number, because the mean of its divisors is an integer number (25120458).

Almost surely, 2^100434811 is an apocalyptic number.

100434811 is a deficient number, since it is larger than the sum of its proper divisors (47021).

100434811 is an equidigital number, since it uses as much as digits as its factorization.

100434811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47020.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 100434811 is about 10021.7169686636. The cubic root of 100434811 is about 464.8306486244.

Adding to 100434811 its reverse (118434001), we get a palindrome (218868812).

The spelling of 100434811 in words is "one hundred million, four hundred thirty-four thousand, eight hundred eleven".