243056103 has 4 divisors (see below), whose sum is σ = 324074808. Its totient is φ = 162037400.

The previous prime is 243056083. The next prime is 243056131. The reversal of 243056103 is 301650342.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 243056103 - 2¹⁰ = 243055079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243056173) 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, 40509348 + ... + 40509353.

It is an arithmetic number, because the mean of its divisors is an integer number (81018702).

Almost surely, 2^243056103 is an apocalyptic number.

243056103 is a deficient number, since it is larger than the sum of its proper divisors (81018705).

243056103 is an equidigital number, since it uses as much as digits as its factorization.

243056103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81018704.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 243056103 is about 15590.2566688301. The cubic root of 243056103 is about 624.0731674764.

The spelling of 243056103 in words is "two hundred forty-three million, fifty-six thousand, one hundred three".