203553102343 has 4 divisors (see below), whose sum is σ = 203635415008. Its totient is φ = 203470789680.

The previous prime is 203553102341. The next prime is 203553102349. The reversal of 203553102343 is 343201355302.

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

It is a cyclic number.

It is not a de Polignac number, because 203553102343 - 2¹ = 203553102341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203553102341) 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, 41152623 + ... + 41157568.

It is an arithmetic number, because the mean of its divisors is an integer number (50908853752).

Almost surely, 2^203553102343 is an apocalyptic number.

203553102343 is a deficient number, since it is larger than the sum of its proper divisors (82312665).

203553102343 is an equidigital number, since it uses as much as digits as its factorization.

203553102343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82312664.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 203553102343 its reverse (343201355302), we get a palindrome (546754457645).

The spelling of 203553102343 in words is "two hundred three billion, five hundred fifty-three million, one hundred two thousand, three hundred forty-three".