204040013111 has 8 divisors (see below), whose sum is σ = 222745106304. Its totient is φ = 185360920120.

The previous prime is 204040013081. The next prime is 204040013119. The reversal of 204040013111 is 111310040402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204040013111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204040013111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204040013119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6483635 + ... + 6515028.

It is an arithmetic number, because the mean of its divisors is an integer number (27843138288).

Almost surely, 2^204040013111 is an apocalyptic number.

204040013111 is a deficient number, since it is larger than the sum of its proper divisors (18705093193).

204040013111 is a wasteful number, since it uses less digits than its factorization.

204040013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13000101.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 204040013111 its reverse (111310040402), we get a palindrome (315350053513).

The spelling of 204040013111 in words is "two hundred four billion, forty million, thirteen thousand, one hundred eleven".