11011001001011 has 32 divisors (see below), whose sum is σ = 12732842013696. Its totient is φ = 9423558144000.

The previous prime is 11011001000899. The next prime is 11011001001043. The reversal of 11011001001011 is 11010010011011.

It is not a de Polignac number, because 11011001001011 - 2¹⁸ = 11011000738867 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 11011001001011.

It is not an unprimeable number, because it can be changed into a prime (11011001000011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9833471 + ... + 10895831.

It is an arithmetic number, because the mean of its divisors is an integer number (397901312928).

Almost surely, 2^{11011001001011} is an apocalyptic number.

11011001001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11011001001011 is a deficient number, since it is larger than the sum of its proper divisors (1721841012685).

11011001001011 is a wasteful number, since it uses less digits than its factorization.

11011001001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063043.

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

Adding to 11011001001011 its reverse (11010010011011), we get a palindrome (22021011012022).

The spelling of 11011001001011 in words is "eleven trillion, eleven billion, one million, one thousand, eleven".