205033324421 has 8 divisors (see below), whose sum is σ = 212675538240. Its totient is φ = 197521746912.

The previous prime is 205033324399. The next prime is 205033324427. The reversal of 205033324421 is 124423330502.

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 not a de Polignac number, because 205033324421 - 2²⁶ = 204966215557 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 (205033324427) 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 7 ways as a sum of consecutive naturals, for example, 32655881 + ... + 32662158.

It is an arithmetic number, because the mean of its divisors is an integer number (26584442280).

Almost surely, 2^205033324421 is an apocalyptic number.

It is an amenable number.

205033324421 is a deficient number, since it is larger than the sum of its proper divisors (7642213819).

205033324421 is an equidigital number, since it uses as much as digits as its factorization.

205033324421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65318155.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 205033324421 its reverse (124423330502), we get a palindrome (329456654923).

The spelling of 205033324421 in words is "two hundred five billion, thirty-three million, three hundred twenty-four thousand, four hundred twenty-one".