204021003311411 has 16 divisors (see below), whose sum is σ = 241276355351808. Its totient is φ = 170072618868000.

The previous prime is 204021003311399. The next prime is 204021003311473. The reversal of 204021003311411 is 114113300120402.

It is a cyclic number.

It is not a de Polignac number, because 204021003311411 - 2³⁴ = 204003823442227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204021003311311) 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, 4724217821 + ... + 4724261006.

It is an arithmetic number, because the mean of its divisors is an integer number (15079772209488).

Almost surely, 2^{204021003311411} is an apocalyptic number.

204021003311411 is a deficient number, since it is larger than the sum of its proper divisors (37255352040397).

204021003311411 is a wasteful number, since it uses less digits than its factorization.

204021003311411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9448479002.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 204021003311411 its reverse (114113300120402), we get a palindrome (318134303431813).

The spelling of 204021003311411 in words is "two hundred four trillion, twenty-one billion, three million, three hundred eleven thousand, four hundred eleven".