998343540203 has 4 divisors (see below), whose sum is σ = 998387502168. Its totient is φ = 998299578240.

The previous prime is 998343540197. The next prime is 998343540239. The reversal of 998343540203 is 302045343899.

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-998343540203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998343540253) 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, 21946901 + ... + 21992342.

It is an arithmetic number, because the mean of its divisors is an integer number (249596875542).

Almost surely, 2^998343540203 is an apocalyptic number.

998343540203 is a deficient number, since it is larger than the sum of its proper divisors (43961965).

998343540203 is a wasteful number, since it uses less digits than its factorization.

998343540203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43961964.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 998343540203 in words is "nine hundred ninety-eight billion, three hundred forty-three million, five hundred forty thousand, two hundred three".