204231020115 has 16 divisors (see below), whose sum is σ = 326798793216. Its totient is φ = 108913490400.

The previous prime is 204231020099. The next prime is 204231020129. The reversal of 204231020115 is 511020132402.

204231020115 is digitally balanced in base 11, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204231020115 - 2⁴ = 204231020099 is a prime.

It is a super-2 number, since 2×204231020115² (a number of 23 digits) contains 22 as substring.

204231020115 is strictly pandigital in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 204231020091 and 204231020100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432201 + ... + 771530.

It is an arithmetic number, because the mean of its divisors is an integer number (20424924576).

Almost surely, 2^204231020115 is an apocalyptic number.

204231020115 is a deficient number, since it is larger than the sum of its proper divisors (122567773101).

204231020115 is a wasteful number, since it uses less digits than its factorization.

204231020115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215050.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 204231020115 its reverse (511020132402), we get a palindrome (715251152517).

The spelling of 204231020115 in words is "two hundred four billion, two hundred thirty-one million, twenty thousand, one hundred fifteen".