204310220311 has 16 divisors (see below), whose sum is σ = 215133266880. Its totient is φ = 193649702400.

The previous prime is 204310220299. The next prime is 204310220381. The reversal of 204310220311 is 113022013402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 204310220311 - 2³¹ = 202162736663 is a prime.

It is a super-2 number, since 2×204310220311² (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 (204310220381) 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, 14810005 + ... + 14823793.

It is an arithmetic number, because the mean of its divisors is an integer number (13445829180).

Almost surely, 2^204310220311 is an apocalyptic number.

204310220311 is a deficient number, since it is larger than the sum of its proper divisors (10823046569).

204310220311 is a wasteful number, since it uses less digits than its factorization.

204310220311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19626.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 204310220311 its reverse (113022013402), we get a palindrome (317332233713).

The spelling of 204310220311 in words is "two hundred four billion, three hundred ten million, two hundred twenty thousand, three hundred eleven".