103305143 has 4 divisors (see below), whose sum is σ = 103353288. Its totient is φ = 103257000.

The previous prime is 103305133. The next prime is 103305151. The reversal of 103305143 is 341503301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341503301 = 269 ⋅1269529.

It is a cyclic number.

It is not a de Polignac number, because 103305143 - 2¹⁸ = 103042999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103305133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20696 + ... + 25197.

It is an arithmetic number, because the mean of its divisors is an integer number (25838322).

Almost surely, 2^103305143 is an apocalyptic number.

103305143 is a deficient number, since it is larger than the sum of its proper divisors (48145).

103305143 is an equidigital number, since it uses as much as digits as its factorization.

103305143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48144.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 103305143 is about 10163.9137639002. The cubic root of 103305143 is about 469.2172621137.

Adding to 103305143 its reverse (341503301), we get a palindrome (444808444).

The spelling of 103305143 in words is "one hundred three million, three hundred five thousand, one hundred forty-three".