1101055105 has 4 divisors (see below), whose sum is σ = 1321266132. Its totient is φ = 880844080.

The previous prime is 1101055097. The next prime is 1101055121. The reversal of 1101055105 is 5015501011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5015501011 = 38923 ⋅128857.

It can be written as a sum of positive squares in 2 ways, for example, as 128051856 + 973003249 = 11316^2 + 31193^2 .

It is not a de Polignac number, because 1101055105 - 2³ = 1101055097 is a prime.

It is a super-2 number, since 2×1101055105² = 2424644688493122050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110105506 + ... + 110105515.

It is an arithmetic number, because the mean of its divisors is an integer number (330316533).

Almost surely, 2^1101055105 is an apocalyptic number.

It is an amenable number.

1101055105 is a deficient number, since it is larger than the sum of its proper divisors (220211027).

1101055105 is an equidigital number, since it uses as much as digits as its factorization.

1101055105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220211026.

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 1101055105 is about 33182.1503974652. The cubic root of 1101055105 is about 1032.6100596562.

Adding to 1101055105 its reverse (5015501011), we get a palindrome (6116556116).

The spelling of 1101055105 in words is "one billion, one hundred one million, fifty-five thousand, one hundred five".