308105103 has 4 divisors (see below), whose sum is σ = 410806808. Its totient is φ = 205403400.

The previous prime is 308105101. The next prime is 308105113. The reversal of 308105103 is 301501803.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 308105103 - 2¹ = 308105101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 308105103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308105101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51350848 + ... + 51350853.

It is an arithmetic number, because the mean of its divisors is an integer number (102701702).

Almost surely, 2^308105103 is an apocalyptic number.

308105103 is a deficient number, since it is larger than the sum of its proper divisors (102701705).

308105103 is a wasteful number, since it uses less digits than its factorization.

308105103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102701704.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 308105103 is about 17552.9229189899. The cubic root of 308105103 is about 675.4081504116.

Adding to 308105103 its reverse (301501803), we get a palindrome (609606906).

The spelling of 308105103 in words is "three hundred eight million, one hundred five thousand, one hundred three".