205024223423 has 16 divisors (see below), whose sum is σ = 210781896000. Its totient is φ = 199350823680.

The previous prime is 205024223413. The next prime is 205024223431. The reversal of 205024223423 is 324322420502.

It is a cyclic number.

It is not a de Polignac number, because 205024223423 - 2⁸ = 205024223167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205024223413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3546353 + ... + 3603701.

It is an arithmetic number, because the mean of its divisors is an integer number (13173868500).

Almost surely, 2^205024223423 is an apocalyptic number.

205024223423 is a deficient number, since it is larger than the sum of its proper divisors (5757672577).

205024223423 is a wasteful number, since it uses less digits than its factorization.

205024223423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58082.

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 205024223423 its reverse (324322420502), we get a palindrome (529346643925).

The spelling of 205024223423 in words is "two hundred five billion, twenty-four million, two hundred twenty-three thousand, four hundred twenty-three".