11103312205 has 8 divisors (see below), whose sum is σ = 13334255352. Its totient is φ = 8875795968.

The previous prime is 11103312193. The next prime is 11103312223. The reversal of 11103312205 is 50221330111.

It can be written as a sum of positive squares in 4 ways, for example, as 6045684516 + 5057627689 = 77754^2 + 71117^2 .

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 11103312205 - 2⁵ = 11103312173 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, 849592 + ... + 862561.

It is an arithmetic number, because the mean of its divisors is an integer number (1666781919).

Almost surely, 2^11103312205 is an apocalyptic number.

It is an amenable number.

11103312205 is a deficient number, since it is larger than the sum of its proper divisors (2230943147).

11103312205 is a wasteful number, since it uses less digits than its factorization.

11103312205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713455.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 11103312205 its reverse (50221330111), we get a palindrome (61324642316).

The spelling of 11103312205 in words is "eleven billion, one hundred three million, three hundred twelve thousand, two hundred five".