204331310123 has 2 divisors, whose sum is σ = 204331310124. Its totient is φ = 204331310122.

The previous prime is 204331310107. The next prime is 204331310143. The reversal of 204331310123 is 321013133402.

204331310123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204331310123 - 2⁴ = 204331310107 is a prime.

It is not a weakly prime, because it can be changed into another prime (204331310143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102165655061 + 102165655062.

It is an arithmetic number, because the mean of its divisors is an integer number (102165655062).

Almost surely, 2^204331310123 is an apocalyptic number.

204331310123 is a deficient number, since it is larger than the sum of its proper divisors (1).

204331310123 is an equidigital number, since it uses as much as digits as its factorization.

204331310123 is an odious number, because the sum of its binary digits is odd.

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

Adding to 204331310123 its reverse (321013133402), we get a palindrome (525344443525).

The spelling of 204331310123 in words is "two hundred four billion, three hundred thirty-one million, three hundred ten thousand, one hundred twenty-three".