100641023 has 16 divisors (see below), whose sum is σ = 117473280. Its totient is φ = 84442176.

The previous prime is 100641001. The next prime is 100641041. The reversal of 100641023 is 320146001.

It is a Cunningham number, because it is equal to 10032²-1.

It is not a de Polignac number, because 100641023 - 2¹⁰ = 100639999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100640992 and 100641010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100641323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69515 + ... + 70947.

It is an arithmetic number, because the mean of its divisors is an integer number (7342080).

Almost surely, 2^100641023 is an apocalyptic number.

100641023 is a deficient number, since it is larger than the sum of its proper divisors (16832257).

100641023 is a wasteful number, since it uses less digits than its factorization.

100641023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 100641023 is about 10031.9999501595. Note that the first 4 decimals coincide. The cubic root of 100641023 is about 465.1485600785.

Adding to 100641023 its reverse (320146001), we get a palindrome (420787024).

The spelling of 100641023 in words is "one hundred million, six hundred forty-one thousand, twenty-three".