204003202313 has 4 divisors (see below), whose sum is σ = 204004854420. Its totient is φ = 204001550208.

The previous prime is 204003202283. The next prime is 204003202321. The reversal of 204003202313 is 313202300402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 145658249104 + 58344953209 = 381652^2 + 241547^2 .

It is a cyclic number.

It is not a de Polignac number, because 204003202313 - 2¹⁴ = 204003185929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204003202393) 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, 624428 + ... + 893261.

It is an arithmetic number, because the mean of its divisors is an integer number (51001213605).

Almost surely, 2^204003202313 is an apocalyptic number.

It is an amenable number.

204003202313 is a deficient number, since it is larger than the sum of its proper divisors (1652107).

204003202313 is a wasteful number, since it uses less digits than its factorization.

204003202313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652106.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 204003202313 its reverse (313202300402), we get a palindrome (517205502715).

The spelling of 204003202313 in words is "two hundred four billion, three million, two hundred two thousand, three hundred thirteen".