203343110123 has 4 divisors (see below), whose sum is σ = 215304469560. Its totient is φ = 191381750688.

The previous prime is 203343110059. The next prime is 203343110197. The reversal of 203343110123 is 321011343302.

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 203343110123 - 2⁶ = 203343110059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203343110323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5980679693 + ... + 5980679726.

It is an arithmetic number, because the mean of its divisors is an integer number (53826117390).

Almost surely, 2^203343110123 is an apocalyptic number.

203343110123 is a deficient number, since it is larger than the sum of its proper divisors (11961359437).

203343110123 is a wasteful number, since it uses less digits than its factorization.

203343110123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11961359436.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203343110123 its reverse (321011343302), we get a palindrome (524354453425).

The spelling of 203343110123 in words is "two hundred three billion, three hundred forty-three million, one hundred ten thousand, one hundred twenty-three".