2102123023 has 32 divisors (see below), whose sum is σ = 2826335232. Its totient is φ = 1509926400.

The previous prime is 2102123017. The next prime is 2102123027. The reversal of 2102123023 is 3203212012.

It is a cyclic number.

It is not a de Polignac number, because 2102123023 - 2²⁵ = 2068568591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102122988 and 2102123006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102123027) 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 31 ways as a sum of consecutive naturals, for example, 1361590 + ... + 1363132.

It is an arithmetic number, because the mean of its divisors is an integer number (88322976).

Almost surely, 2^2102123023 is an apocalyptic number.

2102123023 is a deficient number, since it is larger than the sum of its proper divisors (724212209).

2102123023 is a wasteful number, since it uses less digits than its factorization.

2102123023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2102123023 is about 45848.9151780061. The cubic root of 2102123023 is about 1281.0105591726.

Adding to 2102123023 its reverse (3203212012), we get a palindrome (5305335035).

It can be divided in two parts, 21021 and 23023, that added together give a palindrome (44044).

The spelling of 2102123023 in words is "two billion, one hundred two million, one hundred twenty-three thousand, twenty-three".