204544334123 has 8 divisors (see below), whose sum is σ = 209650492992. Its totient is φ = 199469598336.

The previous prime is 204544334119. The next prime is 204544334153. The reversal of 204544334123 is 321433445402.

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 204544334123 - 2² = 204544334119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204544334153) 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, 7842590 + ... + 7868627.

It is an arithmetic number, because the mean of its divisors is an integer number (26206311624).

Almost surely, 2^204544334123 is an apocalyptic number.

204544334123 is a deficient number, since it is larger than the sum of its proper divisors (5106158869).

204544334123 is a wasteful number, since it uses less digits than its factorization.

204544334123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15711541.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 204544334123 its reverse (321433445402), we get a palindrome (525977779525).

The spelling of 204544334123 in words is "two hundred four billion, five hundred forty-four million, three hundred thirty-four thousand, one hundred twenty-three".