203343320432323 has 4 divisors (see below), whose sum is σ = 205793239955688. Its totient is φ = 200893400908960.

The previous prime is 203343320432311. The next prime is 203343320432381. The reversal of 203343320432323 is 323234023343302.

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-203343320432323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203343420432323) 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, 1224959761558 + ... + 1224959761723.

It is an arithmetic number, because the mean of its divisors is an integer number (51448309988922).

Almost surely, 2^{203343320432323} is an apocalyptic number.

203343320432323 is a deficient number, since it is larger than the sum of its proper divisors (2449919523365).

203343320432323 is an equidigital number, since it uses as much as digits as its factorization.

203343320432323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449919523364.

The product of its (nonzero) digits is 559872, while the sum is 37.

Adding to 203343320432323 its reverse (323234023343302), we get a palindrome (526577343775625).

The spelling of 203343320432323 in words is "two hundred three trillion, three hundred forty-three billion, three hundred twenty million, four hundred thirty-two thousand, three hundred twenty-three".