11001005105 has 4 divisors (see below), whose sum is σ = 13201206132. Its totient is φ = 8800804080.

The previous prime is 11001005089. The next prime is 11001005117. The reversal of 11001005105 is 50150010011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50150010011 = 5711 ⋅8781301.

It can be written as a sum of positive squares in 2 ways, for example, as 3900751936 + 7100253169 = 62456^2 + 84263^2 .

It is not a de Polignac number, because 11001005105 - 2⁴ = 11001005089 is a prime.

It is a super-2 number, since 2×11001005105² (a number of 21 digits) contains 22 as substring.

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 11001005105.

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, 1100100506 + ... + 1100100515.

It is an arithmetic number, because the mean of its divisors is an integer number (3300301533).

Almost surely, 2^11001005105 is an apocalyptic number.

It is an amenable number.

11001005105 is a deficient number, since it is larger than the sum of its proper divisors (2200201027).

11001005105 is an equidigital number, since it uses as much as digits as its factorization.

11001005105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200201026.

The product of its (nonzero) digits is 25, while the sum is 14.

Adding to 11001005105 its reverse (50150010011), we get a palindrome (61151015116).

The spelling of 11001005105 in words is "eleven billion, one million, five thousand, one hundred five".