40123103 has 4 divisors (see below), whose sum is σ = 40283208. Its totient is φ = 39963000.

The previous prime is 40123099. The next prime is 40123121. The reversal of 40123103 is 30132104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40123103 - 2² = 40123099 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 (40123183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79676 + ... + 80177.

It is an arithmetic number, because the mean of its divisors is an integer number (10070802).

Almost surely, 2^40123103 is an apocalyptic number.

40123103 is a deficient number, since it is larger than the sum of its proper divisors (160105).

40123103 is a wasteful number, since it uses less digits than its factorization.

40123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160104.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 40123103 is about 6334.2799906540. The cubic root of 40123103 is about 342.3456686537.

Adding to 40123103 its reverse (30132104), we get a palindrome (70255207).

Subtracting from 40123103 its reverse (30132104), we obtain a palindrome (9990999).

The spelling of 40123103 in words is "forty million, one hundred twenty-three thousand, one hundred three".