102405103 has 2 divisors, whose sum is σ = 102405104. Its totient is φ = 102405102.

The previous prime is 102405097. The next prime is 102405113. The reversal of 102405103 is 301504201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102405103 - 2⁵ = 102405071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102405113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51202551 + 51202552.

It is an arithmetic number, because the mean of its divisors is an integer number (51202552).

Almost surely, 2^102405103 is an apocalyptic number.

102405103 is a deficient number, since it is larger than the sum of its proper divisors (1).

102405103 is an equidigital number, since it uses as much as digits as its factorization.

102405103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102405103 is about 10119.5406516304. The cubic root of 102405103 is about 467.8506094759.

Adding to 102405103 its reverse (301504201), we get a palindrome (403909304).

The spelling of 102405103 in words is "one hundred two million, four hundred five thousand, one hundred three".