203112231103 has 8 divisors (see below), whose sum is σ = 204012513936. Its totient is φ = 202213939200.

The previous prime is 203112231071. The next prime is 203112231107. The reversal of 203112231103 is 301132211302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203112231103 - 2⁵ = 203112231071 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 (203112231107) 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 7 ways as a sum of consecutive naturals, for example, 293058 + ... + 701503.

It is an arithmetic number, because the mean of its divisors is an integer number (25501564242).

Almost surely, 2^203112231103 is an apocalyptic number.

203112231103 is a deficient number, since it is larger than the sum of its proper divisors (900282833).

203112231103 is an equidigital number, since it uses as much as digits as its factorization.

203112231103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995465.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 203112231103 its reverse (301132211302), we get a palindrome (504244442405).

The spelling of 203112231103 in words is "two hundred three billion, one hundred twelve million, two hundred thirty-one thousand, one hundred three".