2123043023 has 4 divisors (see below), whose sum is σ = 2123270160. Its totient is φ = 2122815888.

The previous prime is 2123043001. The next prime is 2123043053. The reversal of 2123043023 is 3203403212.

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 2123043023 - 2²⁰ = 2121994447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123042986 and 2123043004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123043053) 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 3 ways as a sum of consecutive naturals, for example, 98918 + ... + 118451.

It is an arithmetic number, because the mean of its divisors is an integer number (530817540).

Almost surely, 2^2123043023 is an apocalyptic number.

2123043023 is a deficient number, since it is larger than the sum of its proper divisors (227137).

2123043023 is an equidigital number, since it uses as much as digits as its factorization.

2123043023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227136.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2123043023 is about 46076.4910013773. The cubic root of 2123043023 is about 1285.2460122379.

Adding to 2123043023 its reverse (3203403212), we get a palindrome (5326446235).

The spelling of 2123043023 in words is "two billion, one hundred twenty-three million, forty-three thousand, twenty-three".