1103205311 has 8 divisors (see below), whose sum is σ = 1192588320. Its totient is φ = 1014468192.

The previous prime is 1103205289. The next prime is 1103205329. The reversal of 1103205311 is 1135023011.

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 1103205311 - 2¹⁰ = 1103204287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1103205311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103205391) 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, 157916 + ... + 164753.

It is an arithmetic number, because the mean of its divisors is an integer number (149073540).

Almost surely, 2^1103205311 is an apocalyptic number.

1103205311 is a deficient number, since it is larger than the sum of its proper divisors (89383009).

1103205311 is a wasteful number, since it uses less digits than its factorization.

1103205311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322945.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1103205311 is about 33214.5346347047. The cubic root of 1103205311 is about 1033.2818033848.

Adding to 1103205311 its reverse (1135023011), we get a palindrome (2238228322).

The spelling of 1103205311 in words is "one billion, one hundred three million, two hundred five thousand, three hundred eleven".