204201303311 has 4 divisors (see below), whose sum is σ = 204203050800. Its totient is φ = 204199555824.

The previous prime is 204201303277. The next prime is 204201303343. The reversal of 204201303311 is 113303102402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204201303311 is a prime.

It is a super-2 number, since 2×204201303311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204201303391) 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, 684851 + ... + 936708.

It is an arithmetic number, because the mean of its divisors is an integer number (51050762700).

Almost surely, 2^204201303311 is an apocalyptic number.

204201303311 is a deficient number, since it is larger than the sum of its proper divisors (1747489).

204201303311 is a wasteful number, since it uses less digits than its factorization.

204201303311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747488.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 204201303311 its reverse (113303102402), we get a palindrome (317504405713).

The spelling of 204201303311 in words is "two hundred four billion, two hundred one million, three hundred three thousand, three hundred eleven".