2103123430 has 16 divisors (see below), whose sum is σ = 3837481344. Its totient is φ = 829725120.

The previous prime is 2103123419. The next prime is 2103123439. The reversal of 2103123430 is 343213012.

It is a junction number, because it is equal to n+sod(n) for n = 2103123398 and 2103123407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103123439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1439766 + ... + 1441225.

It is an arithmetic number, because the mean of its divisors is an integer number (239842584).

Almost surely, 2^2103123430 is an apocalyptic number.

2103123430 is a deficient number, since it is larger than the sum of its proper divisors (1734357914).

2103123430 is a wasteful number, since it uses less digits than its factorization.

2103123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881071.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2103123430 is about 45859.8237022342. The cubic root of 2103123430 is about 1281.2137392712.

Adding to 2103123430 its reverse (343213012), we get a palindrome (2446336442).

The spelling of 2103123430 in words is "two billion, one hundred three million, one hundred twenty-three thousand, four hundred thirty".