203030031103 has 4 divisors (see below), whose sum is σ = 203031469440. Its totient is φ = 203028592768.

The previous prime is 203030031079. The next prime is 203030031161. The reversal of 203030031103 is 301130030302.

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 203030031103 - 2³³ = 194440096511 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 (203030031163) 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, 481183 + ... + 798496.

It is an arithmetic number, because the mean of its divisors is an integer number (50757867360).

Almost surely, 2^203030031103 is an apocalyptic number.

203030031103 is a deficient number, since it is larger than the sum of its proper divisors (1438337).

203030031103 is a wasteful number, since it uses less digits than its factorization.

203030031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438336.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 203030031103 its reverse (301130030302), we get a palindrome (504160061405).

The spelling of 203030031103 in words is "two hundred three billion, thirty million, thirty-one thousand, one hundred three".