204233440311 has 16 divisors (see below), whose sum is σ = 320366181600. Its totient is φ = 128146472064.

The previous prime is 204233440291. The next prime is 204233440339. The reversal of 204233440311 is 113044332402.

204233440311 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 3 + 344 + 0 + 311 = 666.

It is not a de Polignac number, because 204233440311 - 2⁷ = 204233440183 is a prime.

It is a super-2 number, since 2×204233440311² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204233440351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222476056 + ... + 222476973.

It is an arithmetic number, because the mean of its divisors is an integer number (20022886350).

Almost surely, 2^204233440311 is an apocalyptic number.

204233440311 is a deficient number, since it is larger than the sum of its proper divisors (116132741289).

204233440311 is a wasteful number, since it uses less digits than its factorization.

204233440311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444953055 (or 444953049 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 204233440311 its reverse (113044332402), we get a palindrome (317277772713).

The spelling of 204233440311 in words is "two hundred four billion, two hundred thirty-three million, four hundred forty thousand, three hundred eleven".