2123001023 has 12 divisors (see below), whose sum is σ = 2513052024. Its totient is φ = 1781538000.

The previous prime is 2123001011. The next prime is 2123001029. The reversal of 2123001023 is 3201003212.

It is a happy number.

It is not a de Polignac number, because 2123001023 - 2¹⁶ = 2122935487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123000989 and 2123001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123001029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 673253 + ... + 676398.

It is an arithmetic number, because the mean of its divisors is an integer number (209421002).

Almost surely, 2^2123001023 is an apocalyptic number.

2123001023 is a deficient number, since it is larger than the sum of its proper divisors (390051001).

2123001023 is a wasteful number, since it uses less digits than its factorization.

2123001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349686 (or 1349675 counting only the distinct ones).

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

The square root of 2123001023 is about 46076.0352352500. The cubic root of 2123001023 is about 1285.2375368737.

Adding to 2123001023 its reverse (3201003212), we get a palindrome (5324004235).

The spelling of 2123001023 in words is "two billion, one hundred twenty-three million, one thousand, twenty-three".