1003123103 has 4 divisors (see below), whose sum is σ = 1022050008. Its totient is φ = 984196200.

The previous prime is 1003123067. The next prime is 1003123117. The reversal of 1003123103 is 3013213001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3013213001 = 1823 ⋅1652887.

It is a cyclic number.

It is not a de Polignac number, because 1003123103 - 2¹⁴ = 1003106719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003123123) 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 3 ways as a sum of consecutive naturals, for example, 9463373 + ... + 9463478.

It is an arithmetic number, because the mean of its divisors is an integer number (255512502).

Almost surely, 2^1003123103 is an apocalyptic number.

1003123103 is a deficient number, since it is larger than the sum of its proper divisors (18926905).

1003123103 is an equidigital number, since it uses as much as digits as its factorization.

1003123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18926904.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1003123103 is about 31672.1187008384. The cubic root of 1003123103 is about 1001.0399524573.

Adding to 1003123103 its reverse (3013213001), we get a palindrome (4016336104).

The spelling of 1003123103 in words is "one billion, three million, one hundred twenty-three thousand, one hundred three".