204115123434 has 8 divisors (see below), whose sum is σ = 408230246880. Its totient is φ = 68038374476.

The previous prime is 204115123411. The next prime is 204115123441. The reversal of 204115123434 is 434321511402.

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

204115123434 is an admirable number.

It is a super-2 number, since 2×204115123434² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17009593614 + ... + 17009593625.

It is an arithmetic number, because the mean of its divisors is an integer number (51028780860).

Almost surely, 2^204115123434 is an apocalyptic number.

204115123434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204115123434 is a wasteful number, since it uses less digits than its factorization.

204115123434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34019187244.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 204115123434 its reverse (434321511402), we get a palindrome (638436634836).

The spelling of 204115123434 in words is "two hundred four billion, one hundred fifteen million, one hundred twenty-three thousand, four hundred thirty-four".