2103123023 has 4 divisors (see below), whose sum is σ = 2226836160. Its totient is φ = 1979409888.

The previous prime is 2103123019. The next prime is 2103123041. The reversal of 2103123023 is 3203213012.

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 2103123023 - 2² = 2103123019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 123713119 = 2103123023 / (2 + 1 + 0 + 3 + 1 + 2 + 3 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2103122992 and 2103123010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103123073) 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 3 ways as a sum of consecutive naturals, for example, 61856543 + ... + 61856576.

It is an arithmetic number, because the mean of its divisors is an integer number (556709040).

Almost surely, 2^2103123023 is an apocalyptic number.

2103123023 is a deficient number, since it is larger than the sum of its proper divisors (123713137).

2103123023 is a wasteful number, since it uses less digits than its factorization.

2103123023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123713136.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2103123023 is about 45859.8192647987. The cubic root of 2103123023 is about 1281.2136566237.

Adding to 2103123023 its reverse (3203213012), we get a palindrome (5306336035).

The spelling of 2103123023 in words is "two billion, one hundred three million, one hundred twenty-three thousand, twenty-three".