2103123439 has 2 divisors, whose sum is σ = 2103123440. Its totient is φ = 2103123438.

The previous prime is 2103123419. The next prime is 2103123457. The reversal of 2103123439 is 9343213012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2103123439 - 2⁹ = 2103122927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103123409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051561719 + 1051561720.

It is an arithmetic number, because the mean of its divisors is an integer number (1051561720).

Almost surely, 2^2103123439 is an apocalyptic number.

2103123439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103123439 is an equidigital number, since it uses as much as digits as its factorization.

2103123439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 2103123439 is about 45859.8238003593. The cubic root of 2103123439 is about 1281.2137410988.

The spelling of 2103123439 in words is "two billion, one hundred three million, one hundred twenty-three thousand, four hundred thirty-nine".