100023123 has 8 divisors (see below), whose sum is σ = 133493200. Its totient is φ = 66617568.

The previous prime is 100023109. The next prime is 100023127. The reversal of 100023123 is 321320001.

It is a happy number.

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

It is not a de Polignac number, because 100023123 - 2¹⁶ = 99957587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100023099 and 100023108.

It is not an unprimeable number, because it can be changed into a prime (100023127) 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, 12388 + ... + 18801.

It is an arithmetic number, because the mean of its divisors is an integer number (16686650).

Almost surely, 2^100023123 is an apocalyptic number.

100023123 is a deficient number, since it is larger than the sum of its proper divisors (33470077).

100023123 is a wasteful number, since it uses less digits than its factorization.

100023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32261.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100023123 is about 10001.1560831736. The cubic root of 100023123 is about 464.1946564237.

Adding to 100023123 its reverse (321320001), we get a palindrome (421343124).

The spelling of 100023123 in words is "one hundred million, twenty-three thousand, one hundred twenty-three".