203112433103 has 16 divisors (see below), whose sum is σ = 216394872960. Its totient is φ = 190362182400.

The previous prime is 203112433099. The next prime is 203112433123. The reversal of 203112433103 is 301334211302.

It is a cyclic number.

It is not a de Polignac number, because 203112433103 - 2² = 203112433099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203112433123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 727568 + ... + 967253.

It is an arithmetic number, because the mean of its divisors is an integer number (13524679560).

Almost surely, 2^203112433103 is an apocalyptic number.

203112433103 is a deficient number, since it is larger than the sum of its proper divisors (13282439857).

203112433103 is a wasteful number, since it uses less digits than its factorization.

203112433103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694978.

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

Adding to 203112433103 its reverse (301334211302), we get a palindrome (504446644405).

The spelling of 203112433103 in words is "two hundred three billion, one hundred twelve million, four hundred thirty-three thousand, one hundred three".