204445135311 has 16 divisors (see below), whose sum is σ = 274307712000. Its totient is φ = 135441380448.

The previous prime is 204445135303. The next prime is 204445135313. The reversal of 204445135311 is 113531544402.

It is not a de Polignac number, because 204445135311 - 2³ = 204445135303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204445135313) 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, 260970 + ... + 690648.

It is an arithmetic number, because the mean of its divisors is an integer number (17144232000).

Almost surely, 2^204445135311 is an apocalyptic number.

204445135311 is a deficient number, since it is larger than the sum of its proper divisors (69862576689).

204445135311 is a wasteful number, since it uses less digits than its factorization.

204445135311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430678.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 204445135311 its reverse (113531544402), we get a palindrome (317976679713).

The spelling of 204445135311 in words is "two hundred four billion, four hundred forty-five million, one hundred thirty-five thousand, three hundred eleven".