1100201320205 has 8 divisors (see below), whose sum is σ = 1421798629272. Its totient is φ = 812456359488.

The previous prime is 1100201320157. The next prime is 1100201320259. The reversal of 1100201320205 is 5020231020011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 196443081961 + 903758238244 = 443219^2 + 950662^2 .

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 1100201320205 - 2⁸ = 1100201319949 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 7 ways as a sum of consecutive naturals, for example, 8463087014 + ... + 8463087143.

It is an arithmetic number, because the mean of its divisors is an integer number (177724828659).

Almost surely, 2^{1100201320205} is an apocalyptic number.

It is an amenable number.

1100201320205 is a deficient number, since it is larger than the sum of its proper divisors (321597309067).

1100201320205 is a wasteful number, since it uses less digits than its factorization.

1100201320205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16926174175.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 1100201320205 its reverse (5020231020011), we get a palindrome (6120432340216).

The spelling of 1100201320205 in words is "one trillion, one hundred billion, two hundred one million, three hundred twenty thousand, two hundred five".