204551102311 has 16 divisors (see below), whose sum is σ = 224307118080. Its totient is φ = 185768652160.

The previous prime is 204551102281. The next prime is 204551102317. The reversal of 204551102311 is 113201155402.

It is a cyclic number.

It is not a de Polignac number, because 204551102311 - 2⁵ = 204551102279 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 (204551102317) 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, 1746151 + ... + 1859608.

It is an arithmetic number, because the mean of its divisors is an integer number (14019194880).

Almost surely, 2^204551102311 is an apocalyptic number.

204551102311 is a deficient number, since it is larger than the sum of its proper divisors (19756015769).

204551102311 is a wasteful number, since it uses less digits than its factorization.

204551102311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605894.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 204551102311 its reverse (113201155402), we get a palindrome (317752257713).

The spelling of 204551102311 in words is "two hundred four billion, five hundred fifty-one million, one hundred two thousand, three hundred eleven".