100443423 has 8 divisors (see below), whose sum is σ = 134459136. Its totient is φ = 66695000.

The previous prime is 100443407. The next prime is 100443439. The reversal of 100443423 is 324344001.

It is an interprime number because it is at equal distance from previous prime (100443407) and next prime (100443439).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100443423 - 2⁴ = 100443407 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100443423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100443223) 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 7 ways as a sum of consecutive naturals, for example, 65943 + ... + 67448.

It is an arithmetic number, because the mean of its divisors is an integer number (16807392).

Almost surely, 2^100443423 is an apocalyptic number.

100443423 is a deficient number, since it is larger than the sum of its proper divisors (34015713).

100443423 is a wasteful number, since it uses less digits than its factorization.

100443423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133645.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 100443423 is about 10022.1466263471. The cubic root of 100443423 is about 464.8439342143.

Adding to 100443423 its reverse (324344001), we get a palindrome (424787424).

The spelling of 100443423 in words is "one hundred million, four hundred forty-three thousand, four hundred twenty-three".