204134112123 has 8 divisors (see below), whose sum is σ = 274873656336. Its totient is φ = 134741988000.

The previous prime is 204134112079. The next prime is 204134112157. The reversal of 204134112123 is 321211431402.

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

It is a de Polignac number, because none of the positive numbers 2^k-204134112123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204134112093 and 204134112102.

It is not an unprimeable number, because it can be changed into a prime (204134132123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336854668 + ... + 336855273.

It is an arithmetic number, because the mean of its divisors is an integer number (34359207042).

Almost surely, 2^204134112123 is an apocalyptic number.

204134112123 is a deficient number, since it is larger than the sum of its proper divisors (70739544213).

204134112123 is a wasteful number, since it uses less digits than its factorization.

204134112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673710045.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 204134112123 its reverse (321211431402), we get a palindrome (525345543525).

The spelling of 204134112123 in words is "two hundred four billion, one hundred thirty-four million, one hundred twelve thousand, one hundred twenty-three".