2003103123103 has 2 divisors, whose sum is σ = 2003103123104. Its totient is φ = 2003103123102.

The previous prime is 2003103123017. The next prime is 2003103123179. The reversal of 2003103123103 is 3013213013002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2003103123103 - 2²⁵ = 2003069568671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2003103129103) 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 as a sum of consecutive naturals, namely, 1001551561551 + 1001551561552.

It is an arithmetic number, because the mean of its divisors is an integer number (1001551561552).

Almost surely, 2^{2003103123103} is an apocalyptic number.

2003103123103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2003103123103 is an equidigital number, since it uses as much as digits as its factorization.

2003103123103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 2003103123103 its reverse (3013213013002), we get a palindrome (5016316136105).

The spelling of 2003103123103 in words is "two trillion, three billion, one hundred three million, one hundred twenty-three thousand, one hundred three".