243241143403 has 4 divisors (see below), whose sum is σ = 243257860648. Its totient is φ = 243224426160.

The previous prime is 243241143359. The next prime is 243241143449. The reversal of 243241143403 is 304341142342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243241143403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243241173403) 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, 8336778 + ... + 8365903.

It is an arithmetic number, because the mean of its divisors is an integer number (60814465162).

Almost surely, 2^243241143403 is an apocalyptic number.

243241143403 is a deficient number, since it is larger than the sum of its proper divisors (16717245).

243241143403 is a wasteful number, since it uses less digits than its factorization.

243241143403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16717244.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 243241143403 its reverse (304341142342), we get a palindrome (547582285745).

The spelling of 243241143403 in words is "two hundred forty-three billion, two hundred forty-one million, one hundred forty-three thousand, four hundred three".