2102424123 has 16 divisors (see below), whose sum is σ = 2899279872. Its totient is φ = 1353768000.

The previous prime is 2102424083. The next prime is 2102424131. The reversal of 2102424123 is 3214242012.

It is not a de Polignac number, because 2102424123 - 2⁶ = 2102424059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102424123.

It is not an unprimeable number, because it can be changed into a prime (2102424133) 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 15 ways as a sum of consecutive naturals, for example, 26758 + ... + 70148.

It is an arithmetic number, because the mean of its divisors is an integer number (181204992).

Almost surely, 2^2102424123 is an apocalyptic number.

2102424123 is a deficient number, since it is larger than the sum of its proper divisors (796855749).

2102424123 is a wasteful number, since it uses less digits than its factorization.

2102424123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43946.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2102424123 is about 45852.1986713833. The cubic root of 2102424123 is about 1281.0717185911.

Adding to 2102424123 its reverse (3214242012), we get a palindrome (5316666135).

The spelling of 2102424123 in words is "two billion, one hundred two million, four hundred twenty-four thousand, one hundred twenty-three".