100423045434 has 16 divisors (see below), whose sum is σ = 201746748672. Its totient is φ = 33324238848.

The previous prime is 100423045433. The next prime is 100423045447. The reversal of 100423045434 is 434540324001.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100423045433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37525959 + ... + 37528634.

It is an arithmetic number, because the mean of its divisors is an integer number (12609171792).

Almost surely, 2^100423045434 is an apocalyptic number.

100423045434 is an abundant number, since it is smaller than the sum of its proper divisors (101323703238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100423045434 is a wasteful number, since it uses less digits than its factorization.

100423045434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75054821.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 100423045434 its reverse (434540324001), we get a palindrome (534963369435).

The spelling of 100423045434 in words is "one hundred billion, four hundred twenty-three million, forty-five thousand, four hundred thirty-four".