19530103 has 2 divisors, whose sum is σ = 19530104. Its totient is φ = 19530102.

The previous prime is 19530101. The next prime is 19530107. The reversal of 19530103 is 30103591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19530103 - 2¹ = 19530101 is a prime.

Together with 19530101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19530101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9765051 + 9765052.

It is an arithmetic number, because the mean of its divisors is an integer number (9765052).

Almost surely, 2^19530103 is an apocalyptic number.

19530103 is a deficient number, since it is larger than the sum of its proper divisors (1).

19530103 is an equidigital number, since it uses as much as digits as its factorization.

19530103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 19530103 is about 4419.2876122742. The cubic root of 19530103 is about 269.2990643927.

Adding to 19530103 its reverse (30103591), we get a palindrome (49633694).

The spelling of 19530103 in words is "nineteen million, five hundred thirty thousand, one hundred three".