203313300103 has 4 divisors (see below), whose sum is σ = 203314831560. Its totient is φ = 203311768648.

The previous prime is 203313300049. The next prime is 203313300107. The reversal of 203313300103 is 301003313302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301003313302 = 2 ⋅150501656651.

It is a cyclic number.

It is not a de Polignac number, because 203313300103 - 2¹³ = 203313291911 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 (203313300107) 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, 545473 + ... + 839146.

It is an arithmetic number, because the mean of its divisors is an integer number (50828707890).

Almost surely, 2^203313300103 is an apocalyptic number.

203313300103 is a deficient number, since it is larger than the sum of its proper divisors (1531457).

203313300103 is a wasteful number, since it uses less digits than its factorization.

203313300103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531456.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 203313300103 its reverse (301003313302), we get a palindrome (504316613405).

The spelling of 203313300103 in words is "two hundred three billion, three hundred thirteen million, three hundred thousand, one hundred three".