11101001001011 has 16 divisors (see below), whose sum is σ = 12027557735424. Its totient is φ = 10204847850624.

The previous prime is 11101001001007. The next prime is 11101001001031. The reversal of 11101001001011 is 11010010010111.

It is a cyclic number.

It is not a de Polignac number, because 11101001001011 - 2² = 11101001001007 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 11101001001011.

It is not an unprimeable number, because it can be changed into a prime (11101001001031) 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, 62911670 + ... + 63087876.

It is an arithmetic number, because the mean of its divisors is an integer number (751722358464).

Almost surely, 2^{11101001001011} is an apocalyptic number.

11101001001011 is a deficient number, since it is larger than the sum of its proper divisors (926556734413).

11101001001011 is a wasteful number, since it uses less digits than its factorization.

11101001001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262450.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 11101001001011 its reverse (11010010010111), we get a palindrome (22111011011122).

The spelling of 11101001001011 in words is "eleven trillion, one hundred one billion, one million, one thousand, eleven".