203343032213243 has 16 divisors (see below), whose sum is σ = 219196859352576. Its totient is φ = 187519524746400.

The previous prime is 203343032213197. The next prime is 203343032213257. The reversal of 203343032213243 is 342312230343302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 203343032213243 - 2¹⁴ = 203343032196859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203343032213543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189353768 + ... + 190424618.

It is an arithmetic number, because the mean of its divisors is an integer number (13699803709536).

Almost surely, 2^{203343032213243} is an apocalyptic number.

203343032213243 is a deficient number, since it is larger than the sum of its proper divisors (15853827139333).

203343032213243 is a wasteful number, since it uses less digits than its factorization.

203343032213243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084994.

The product of its (nonzero) digits is 186624, while the sum is 35.

Adding to 203343032213243 its reverse (342312230343302), we get a palindrome (545655262556545).

The spelling of 203343032213243 in words is "two hundred three trillion, three hundred forty-three billion, thirty-two million, two hundred thirteen thousand, two hundred forty-three".