102305103 has 4 divisors (see below), whose sum is σ = 136406808. Its totient is φ = 68203400.

The previous prime is 102305089. The next prime is 102305141. The reversal of 102305103 is 301503201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301503201 = 3 ⋅100501067.

It is a cyclic number.

It is not a de Polignac number, because 102305103 - 2⁸ = 102304847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102305153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17050848 + ... + 17050853.

It is an arithmetic number, because the mean of its divisors is an integer number (34101702).

Almost surely, 2^102305103 is an apocalyptic number.

102305103 is a deficient number, since it is larger than the sum of its proper divisors (34101705).

102305103 is an equidigital number, since it uses as much as digits as its factorization.

102305103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34101704.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 102305103 is about 10114.5985090858. The cubic root of 102305103 is about 467.6982723475.

Adding to 102305103 its reverse (301503201), we get a palindrome (403808304).

The spelling of 102305103 in words is "one hundred two million, three hundred five thousand, one hundred three".