205323143001 has 16 divisors (see below), whose sum is σ = 278605435584. Its totient is φ = 134482074624.

The previous prime is 205323142967. The next prime is 205323143027. The reversal of 205323143001 is 100341323502.

It is not a de Polignac number, because 205323143001 - 2¹⁹ = 205322618713 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (205323143401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2535235 + ... + 2614968.

It is an arithmetic number, because the mean of its divisors is an integer number (17412839724).

Almost surely, 2^205323143001 is an apocalyptic number.

It is an amenable number.

205323143001 is a deficient number, since it is larger than the sum of its proper divisors (73282292583).

205323143001 is a wasteful number, since it uses less digits than its factorization.

205323143001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5150440.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 205323143001 its reverse (100341323502), we get a palindrome (305664466503).

The spelling of 205323143001 in words is "two hundred five billion, three hundred twenty-three million, one hundred forty-three thousand, one".