204312241123 has 4 divisors (see below), whose sum is σ = 204536514528. Its totient is φ = 204087967720.

The previous prime is 204312241117. The next prime is 204312241141. The reversal of 204312241123 is 321142213402.

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 204312241123 - 2⁹ = 204312240611 is a prime.

It is a super-2 number, since 2×204312241123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204312241423) 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 3 ways as a sum of consecutive naturals, for example, 112135336 + ... + 112137157.

It is an arithmetic number, because the mean of its divisors is an integer number (51134128632).

Almost surely, 2^204312241123 is an apocalyptic number.

204312241123 is a deficient number, since it is larger than the sum of its proper divisors (224273405).

204312241123 is an equidigital number, since it uses as much as digits as its factorization.

204312241123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224273404.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 204312241123 its reverse (321142213402), we get a palindrome (525454454525).

The spelling of 204312241123 in words is "two hundred four billion, three hundred twelve million, two hundred forty-one thousand, one hundred twenty-three".