204523333213 has 4 divisors (see below), whose sum is σ = 204526476928. Its totient is φ = 204520189500.

The previous prime is 204523333211. The next prime is 204523333237. The reversal of 204523333213 is 312333325402.

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 a cyclic number.

It is not a de Polignac number, because 204523333213 - 2¹ = 204523333211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204523333211) 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, 1472163 + ... + 1605088.

It is an arithmetic number, because the mean of its divisors is an integer number (51131619232).

Almost surely, 2^204523333213 is an apocalyptic number.

It is an amenable number.

204523333213 is a deficient number, since it is larger than the sum of its proper divisors (3143715).

204523333213 is an equidigital number, since it uses as much as digits as its factorization.

204523333213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143714.

The product of its (nonzero) digits is 38880, while the sum is 31.

Adding to 204523333213 its reverse (312333325402), we get a palindrome (516856658615).

The spelling of 204523333213 in words is "two hundred four billion, five hundred twenty-three million, three hundred thirty-three thousand, two hundred thirteen".