103105603 has 2 divisors, whose sum is σ = 103105604. Its totient is φ = 103105602.

The previous prime is 103105601. The next prime is 103105621. The reversal of 103105603 is 306501301.

It is a weak prime.

It is an emirp because it is prime and its reverse (306501301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103105603 - 2¹ = 103105601 is a prime.

Together with 103105601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103105601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51552801 + 51552802.

It is an arithmetic number, because the mean of its divisors is an integer number (51552802).

Almost surely, 2^103105603 is an apocalyptic number.

103105603 is a deficient number, since it is larger than the sum of its proper divisors (1).

103105603 is an equidigital number, since it uses as much as digits as its factorization.

103105603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 103105603 is about 10154.0929186215. The cubic root of 103105603 is about 468.9149604181.

Adding to 103105603 its reverse (306501301), we get a palindrome (409606904).

The spelling of 103105603 in words is "one hundred three million, one hundred five thousand, six hundred three".