204040323321 has 32 divisors (see below), whose sum is σ = 283079349888. Its totient is φ = 130619174400.

The previous prime is 204040323287. The next prime is 204040323323. The reversal of 204040323321 is 123323040402.

It is not a de Polignac number, because 204040323321 - 2⁶ = 204040323257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204040323291 and 204040323300.

It is not an unprimeable number, because it can be changed into a prime (204040323323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3479970 + ... + 3538116.

It is an arithmetic number, because the mean of its divisors is an integer number (8846229684).

Almost surely, 2^204040323321 is an apocalyptic number.

It is an amenable number.

204040323321 is a deficient number, since it is larger than the sum of its proper divisors (79039026567).

204040323321 is a wasteful number, since it uses less digits than its factorization.

204040323321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58601.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 204040323321 its reverse (123323040402), we get a palindrome (327363363723).

The spelling of 204040323321 in words is "two hundred four billion, forty million, three hundred twenty-three thousand, three hundred twenty-one".