100643023 has 8 divisors (see below), whose sum is σ = 109399248. Its totient is φ = 92031744.

The previous prime is 100642951. The next prime is 100643047. The reversal of 100643023 is 320346001.

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 100643023 - 2⁹ = 100642511 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 (100643063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34786 + ... + 37567.

It is an arithmetic number, because the mean of its divisors is an integer number (13674906).

Almost surely, 2^100643023 is an apocalyptic number.

100643023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100643023 is a deficient number, since it is larger than the sum of its proper divisors (8756225).

100643023 is a wasteful number, since it uses less digits than its factorization.

100643023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72473.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 100643023 is about 10032.0996306855. The cubic root of 100643023 is about 465.1516412971.

Adding to 100643023 its reverse (320346001), we get a palindrome (420989024).

The spelling of 100643023 in words is "one hundred million, six hundred forty-three thousand, twenty-three".