204040143124323 has 16 divisors (see below), whose sum is σ = 307019651097600. Its totient is φ = 119396530981280.

The previous prime is 204040143124319. The next prime is 204040143124351. The reversal of 204040143124323 is 323421341040402.

It is a cyclic number.

It is not a de Polignac number, because 204040143124323 - 2² = 204040143124319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (204040143124423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106604044563 + ... + 106604046476.

It is an arithmetic number, because the mean of its divisors is an integer number (19188728193600).

Almost surely, 2^{204040143124323} is an apocalyptic number.

204040143124323 is a deficient number, since it is larger than the sum of its proper divisors (102979507973277).

204040143124323 is a wasteful number, since it uses less digits than its factorization.

204040143124323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213208091082.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 204040143124323 its reverse (323421341040402), we get a palindrome (527461484164725).

The spelling of 204040143124323 in words is "two hundred four trillion, forty billion, one hundred forty-three million, one hundred twenty-four thousand, three hundred twenty-three".