323145550205 has 4 divisors (see below), whose sum is σ = 387774660252. Its totient is φ = 258516440160.

The previous prime is 323145550199. The next prime is 323145550249. The reversal of 323145550205 is 502055541323.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85115728516 + 238029821689 = 291746^2 + 487883^2 .

It is not a de Polignac number, because 323145550205 - 2²⁶ = 323078441341 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 32314555016 + ... + 32314555025.

It is an arithmetic number, because the mean of its divisors is an integer number (96943665063).

Almost surely, 2^323145550205 is an apocalyptic number.

It is an amenable number.

323145550205 is a deficient number, since it is larger than the sum of its proper divisors (64629110047).

323145550205 is an equidigital number, since it uses as much as digits as its factorization.

323145550205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64629110046.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 323145550205 in words is "three hundred twenty-three billion, one hundred forty-five million, five hundred fifty thousand, two hundred five".