243312103003 has 4 divisors (see below), whose sum is σ = 243313455528. Its totient is φ = 243310750480.

The previous prime is 243312102961. The next prime is 243312103031. The reversal of 243312103003 is 300301213342.

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-243312103003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243312103063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355801 + ... + 783082.

It is an arithmetic number, because the mean of its divisors is an integer number (60828363882).

Almost surely, 2^243312103003 is an apocalyptic number.

243312103003 is a deficient number, since it is larger than the sum of its proper divisors (1352525).

243312103003 is a wasteful number, since it uses less digits than its factorization.

243312103003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352524.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 243312103003 its reverse (300301213342), we get a palindrome (543613316345).

The spelling of 243312103003 in words is "two hundred forty-three billion, three hundred twelve million, one hundred three thousand, three".