204401311323 has 8 divisors (see below), whose sum is σ = 297310998336. Its totient is φ = 123879582600.

The previous prime is 204401311313. The next prime is 204401311357. The reversal of 204401311323 is 323113104402.

It is a happy number.

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

It is not a de Polignac number, because 204401311323 - 2¹⁰ = 204401310299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204401311293 and 204401311302.

It is not an unprimeable number, because it can be changed into a prime (204401311313) 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 7 ways as a sum of consecutive naturals, for example, 3096989533 + ... + 3096989598.

It is an arithmetic number, because the mean of its divisors is an integer number (37163874792).

Almost surely, 2^204401311323 is an apocalyptic number.

204401311323 is a deficient number, since it is larger than the sum of its proper divisors (92909687013).

204401311323 is a wasteful number, since it uses less digits than its factorization.

204401311323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6193979145.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 204401311323 its reverse (323113104402), we get a palindrome (527514415725).

The spelling of 204401311323 in words is "two hundred four billion, four hundred one million, three hundred eleven thousand, three hundred twenty-three".