103243013 has 4 divisors (see below), whose sum is σ = 103283808. Its totient is φ = 103202220.

The previous prime is 103242917. The next prime is 103243027. The reversal of 103243013 is 310342301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103243013 - 2¹⁰ = 103241989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103242982 and 103243000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103243313) 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, 16331 + ... + 21752.

It is an arithmetic number, because the mean of its divisors is an integer number (25820952).

Almost surely, 2^103243013 is an apocalyptic number.

It is an amenable number.

103243013 is a deficient number, since it is larger than the sum of its proper divisors (40795).

103243013 is an equidigital number, since it uses as much as digits as its factorization.

103243013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40794.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 103243013 is about 10160.8569028404. The cubic root of 103243013 is about 469.1231773666.

Adding to 103243013 its reverse (310342301), we get a palindrome (413585314).

The spelling of 103243013 in words is "one hundred three million, two hundred forty-three thousand, thirteen".