204023331121 has 4 divisors (see below), whose sum is σ = 214761401200. Its totient is φ = 193285261044.

The previous prime is 204023331103. The next prime is 204023331143. The reversal of 204023331121 is 121133320402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 204023331121 - 2¹⁷ = 204023200049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204023331092 and 204023331101.

It is not an unprimeable number, because it can be changed into a prime (204023337121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5369035011 + ... + 5369035048.

It is an arithmetic number, because the mean of its divisors is an integer number (53690350300).

Almost surely, 2^204023331121 is an apocalyptic number.

It is an amenable number.

204023331121 is a deficient number, since it is larger than the sum of its proper divisors (10738070079).

204023331121 is a wasteful number, since it uses less digits than its factorization.

204023331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10738070078.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 204023331121 its reverse (121133320402), we get a palindrome (325156651523).

The spelling of 204023331121 in words is "two hundred four billion, twenty-three million, three hundred thirty-one thousand, one hundred twenty-one".