11102001001 has 48 divisors (see below), whose sum is σ = 14220360000. Its totient is φ = 8587942272.

The previous prime is 11102000971. The next prime is 11102001013. The reversal of 11102001001 is 10010020111.

It is not a de Polignac number, because 11102001001 - 2⁷ = 11102000873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (11102001041) 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 47 ways as a sum of consecutive naturals, for example, 16846410 + ... + 16847068.

It is an arithmetic number, because the mean of its divisors is an integer number (296257500).

Almost surely, 2^11102001001 is an apocalyptic number.

It is an amenable number.

11102001001 is a deficient number, since it is larger than the sum of its proper divisors (3118358999).

11102001001 is a wasteful number, since it uses less digits than its factorization.

11102001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 11102001001 its reverse (10010020111), we get a palindrome (21112021112).

The spelling of 11102001001 in words is "eleven billion, one hundred two million, one thousand, one".