100078423 has 4 divisors (see below), whose sum is σ = 100120120. Its totient is φ = 100036728.

The previous prime is 100078411. The next prime is 100078441. The reversal of 100078423 is 324870001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324870001 = 281 ⋅1156121.

It is a cyclic number.

It is not a de Polignac number, because 100078423 - 2¹³ = 100070231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100078483) 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, 17013 + ... + 22126.

It is an arithmetic number, because the mean of its divisors is an integer number (25030030).

Almost surely, 2^100078423 is an apocalyptic number.

100078423 is a deficient number, since it is larger than the sum of its proper divisors (41697).

100078423 is an equidigital number, since it uses as much as digits as its factorization.

100078423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41696.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 100078423 is about 10003.9203815304. The cubic root of 100078423 is about 464.2801874304.

The spelling of 100078423 in words is "one hundred million, seventy-eight thousand, four hundred twenty-three".