1101123205 has 16 divisors (see below), whose sum is σ = 1626274944. Its totient is φ = 696974400.

The previous prime is 1101123187. The next prime is 1101123227. The reversal of 1101123205 is 5023211011.

It is not a de Polignac number, because 1101123205 - 2¹⁷ = 1100992133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1209571 + ... + 1210480.

It is an arithmetic number, because the mean of its divisors is an integer number (101642184).

Almost surely, 2^1101123205 is an apocalyptic number.

It is an amenable number.

1101123205 is a deficient number, since it is larger than the sum of its proper divisors (525151739).

1101123205 is a wasteful number, since it uses less digits than its factorization.

1101123205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420076.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1101123205 is about 33183.1765357086. The cubic root of 1101123205 is about 1032.6313481140.

Adding to 1101123205 its reverse (5023211011), we get a palindrome (6124334216).

The spelling of 1101123205 in words is "one billion, one hundred one million, one hundred twenty-three thousand, two hundred five".