100442023 has 16 divisors (see below), whose sum is σ = 113046912. Its totient is φ = 88452000.

The previous prime is 100442021. The next prime is 100442039. The reversal of 100442023 is 320244001.

It is a cyclic number.

It is not a de Polignac number, because 100442023 - 2¹ = 100442021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100441988 and 100442006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100442021) 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 15 ways as a sum of consecutive naturals, for example, 61153 + ... + 62773.

It is an arithmetic number, because the mean of its divisors is an integer number (7065432).

Almost surely, 2^100442023 is an apocalyptic number.

100442023 is a deficient number, since it is larger than the sum of its proper divisors (12604889).

100442023 is a wasteful number, since it uses less digits than its factorization.

100442023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 100442023 is about 10022.0767807875. The cubic root of 100442023 is about 464.8417745091.

Adding to 100442023 its reverse (320244001), we get a palindrome (420686024).

The spelling of 100442023 in words is "one hundred million, four hundred forty-two thousand, twenty-three".