103243 has 10 divisors (see below), whose sum is σ = 123244. Its totient is φ = 86436.

The previous prime is 103237. The next prime is 103289. The reversal of 103243 is 342301.

It is a de Polignac number, because none of the positive numbers 2^k-103243 is a prime.

It is a Duffinian number.

103243 is a lucky number.

It is a nialpdrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (103043) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2380 + ... + 2422.

2¹⁰³²⁴³ is an apocalyptic number.

103243 is a deficient number, since it is larger than the sum of its proper divisors (20001).

103243 is an frugal number, since it uses more digits than its factorization.

103243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 103243 is about 321.3144876908. The cubic root of 103243 is about 46.9123157676.

Adding to 103243 its reverse (342301), we get a palindrome (445544).

The spelling of 103243 in words is "one hundred three thousand, two hundred forty-three", and thus it is an iban number.