203112300323 has 4 divisors (see below), whose sum is σ = 203118376608. Its totient is φ = 203106224040.

The previous prime is 203112300319. The next prime is 203112300353. The reversal of 203112300323 is 323003211302.

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 203112300323 - 2² = 203112300319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203112300295 and 203112300304.

It is not an unprimeable number, because it can be changed into a prime (203112300353) 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, 2987723 + ... + 3054948.

It is an arithmetic number, because the mean of its divisors is an integer number (50779594152).

Almost surely, 2^203112300323 is an apocalyptic number.

203112300323 is a deficient number, since it is larger than the sum of its proper divisors (6076285).

203112300323 is an equidigital number, since it uses as much as digits as its factorization.

203112300323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6076284.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203112300323 its reverse (323003211302), we get a palindrome (526115511625).

The spelling of 203112300323 in words is "two hundred three billion, one hundred twelve million, three hundred thousand, three hundred twenty-three".