11001001002 has 32 divisors (see below), whose sum is σ = 23526915264. Its totient is φ = 3417120000.

The previous prime is 11001000953. The next prime is 11001001003. The reversal of 11001001002 is 20010010011.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is not an unprimeable number, because it can be changed into a prime (11001001003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523624 + ... + 544227.

It is an arithmetic number, because the mean of its divisors is an integer number (735216102).

Almost surely, 2^11001001002 is an apocalyptic number.

11001001002 is an abundant number, since it is smaller than the sum of its proper divisors (12525914262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11001001002 is a wasteful number, since it uses less digits than its factorization.

11001001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067974.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 11001001002 its reverse (20010010011), we get a palindrome (31011011013).

Subtracting 11001001002 from its reverse (20010010011), we obtain a palindrome (9009009009).

The spelling of 11001001002 in words is "eleven billion, one million, one thousand, two".