11102011001 has 4 divisors (see below), whose sum is σ = 11211932004. Its totient is φ = 10992090000.

The previous prime is 11102010991. The next prime is 11102011003. The reversal of 11102011001 is 10011020111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10873275625 + 228735376 = 104275^2 + 15124^2 .

It is a cyclic number.

It is not a de Polignac number, because 11102011001 - 2¹⁸ = 11101748857 is a prime.

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 11102011001.

It is not an unprimeable number, because it can be changed into a prime (11102011003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54960350 + ... + 54960551.

It is an arithmetic number, because the mean of its divisors is an integer number (2802983001).

Almost surely, 2^11102011001 is an apocalyptic number.

It is an amenable number.

11102011001 is a deficient number, since it is larger than the sum of its proper divisors (109921003).

11102011001 is a wasteful number, since it uses less digits than its factorization.

11102011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109921002.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 11102011001 its reverse (10011020111), we get a palindrome (21113031112).

The spelling of 11102011001 in words is "eleven billion, one hundred two million, eleven thousand, one".