103420505 has 8 divisors (see below), whose sum is σ = 124165824. Its totient is φ = 82695600.

The previous prime is 103420483. The next prime is 103420511. The reversal of 103420505 is 505024301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103420505 - 2¹⁸ = 103158361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 10250 + ... + 17660.

It is an arithmetic number, because the mean of its divisors is an integer number (15520728).

Almost surely, 2^103420505 is an apocalyptic number.

It is an amenable number.

103420505 is a deficient number, since it is larger than the sum of its proper divisors (20745319).

103420505 is an equidigital number, since it uses as much as digits as its factorization.

103420505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10207.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 103420505 is about 10169.5872580946. The cubic root of 103420505 is about 469.3918571809.

Adding to 103420505 its reverse (505024301), we get a palindrome (608444806).

The spelling of 103420505 in words is "one hundred three million, four hundred twenty thousand, five hundred five".