204111331411 has 4 divisors (see below), whose sum is σ = 219812203072. Its totient is φ = 188410459752.

The previous prime is 204111331409. The next prime is 204111331423. The reversal of 204111331411 is 114133111402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204111331411 - 2¹ = 204111331409 is a prime.

It is a super-2 number, since 2×204111331411² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204111331451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7850435811 + ... + 7850435836.

It is an arithmetic number, because the mean of its divisors is an integer number (54953050768).

Almost surely, 2^204111331411 is an apocalyptic number.

204111331411 is a deficient number, since it is larger than the sum of its proper divisors (15700871661).

204111331411 is a wasteful number, since it uses less digits than its factorization.

204111331411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15700871660.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 204111331411 its reverse (114133111402), we get a palindrome (318244442813).

The spelling of 204111331411 in words is "two hundred four billion, one hundred eleven million, three hundred thirty-one thousand, four hundred eleven".