100001323205 has 32 divisors (see below), whose sum is σ = 140915016960. Its totient is φ = 66688842240.

The previous prime is 100001323189. The next prime is 100001323217. The reversal of 100001323205 is 502323100001.

It is not a de Polignac number, because 100001323205 - 2⁴ = 100001323189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3054161 + ... + 3086729.

It is an arithmetic number, because the mean of its divisors is an integer number (4403594280).

Almost surely, 2^100001323205 is an apocalyptic number.

It is an amenable number.

100001323205 is a deficient number, since it is larger than the sum of its proper divisors (40913693755).

100001323205 is a wasteful number, since it uses less digits than its factorization.

100001323205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34989.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 100001323205 its reverse (502323100001), we get a palindrome (602324423206).

The spelling of 100001323205 in words is "one hundred billion, one million, three hundred twenty-three thousand, two hundred five".