205303512443 has 8 divisors (see below), whose sum is σ = 208665035280. Its totient is φ = 201950733600.

The previous prime is 205303512431. The next prime is 205303512461. The reversal of 205303512443 is 344215303502.

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 205303512443 - 2²⁰ = 205302463867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205503512443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2138648 + ... + 2232581.

It is an arithmetic number, because the mean of its divisors is an integer number (26083129410).

Almost surely, 2^205303512443 is an apocalyptic number.

205303512443 is a deficient number, since it is larger than the sum of its proper divisors (3361522837).

205303512443 is an equidigital number, since it uses as much as digits as its factorization.

205303512443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371997.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 205303512443 its reverse (344215303502), we get a palindrome (549518815945).

The spelling of 205303512443 in words is "two hundred five billion, three hundred three million, five hundred twelve thousand, four hundred forty-three".