102103 has 2 divisors, whose sum is σ = 102104.
Its totient is φ = 102102.
The previous prime is 102101. The next prime is 102107. The reversal of 102103 is 301201.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 102103 - 21 = 102101 is a prime.
Together with 102101, 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 (102101) 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, 51051 + 51052.
It is an arithmetic number, because the mean of its divisors is an integer number (51052).
2102103 is an apocalyptic number.
102103 is a deficient number, since it is larger than the sum of its proper divisors (1).
102103 is an equidigital number, since it uses as much as digits as its factorization.
102103 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6, while the sum is 7.
The square root of 102103 is about 319.5356005205.
The cubic root of 102103 is about 46.7390091123.
Adding to 102103 its reverse (301201), we get a palindrome (403304).
The spelling of 102103 in words is "one hundred two thousand, one hundred three", and thus it is an iban number.