11001020005 has 8 divisors (see below), whose sum is σ = 13558014072. Its totient is φ = 8562955968.

The previous prime is 11001019999. The next prime is 11001020021. The reversal of 11001020005 is 50002010011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 635947524 + 10365072481 = 25218^2 + 101809^2 .

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 11001020005 - 2²⁷ = 10866802277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001019973 and 11001020000.

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, 29732302 + ... + 29732671.

It is an arithmetic number, because the mean of its divisors is an integer number (1694751759).

Almost surely, 2^11001020005 is an apocalyptic number.

It is an amenable number.

11001020005 is a deficient number, since it is larger than the sum of its proper divisors (2556994067).

11001020005 is an equidigital number, since it uses as much as digits as its factorization.

11001020005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59465015.

The product of its (nonzero) digits is 10, while the sum is 10.

Adding to 11001020005 its reverse (50002010011), we get a palindrome (61003030016).

The spelling of 11001020005 in words is "eleven billion, one million, twenty thousand, five".