205413213110234 has 16 divisors (see below), whose sum is σ = 308917415479488. Its totient is φ = 102440920866912.

The previous prime is 205413213110221. The next prime is 205413213110257. The reversal of 205413213110234 is 432011312314502.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 205413213110234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42606572 + ... + 47182055.

It is an arithmetic number, because the mean of its divisors is an integer number (19307338467468).

Almost surely, 2^{205413213110234} is an apocalyptic number.

205413213110234 is a deficient number, since it is larger than the sum of its proper divisors (103504202369254).

205413213110234 is a wasteful number, since it uses less digits than its factorization.

205413213110234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89791589.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 205413213110234 its reverse (432011312314502), we get a palindrome (637424525424736).

The spelling of 205413213110234 in words is "two hundred five trillion, four hundred thirteen billion, two hundred thirteen million, one hundred ten thousand, two hundred thirty-four".