11001001011011 has 8 divisors (see below), whose sum is σ = 12020111182848. Its totient is φ = 9985060701000.

The previous prime is 11001001010969. The next prime is 11001001011031. The reversal of 11001001011011 is 11011010010011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11001001011011 - 2¹⁸ = 11001000748867 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 11001001011011.

It is not an unprimeable number, because it can be changed into a prime (11001001011031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792458195 + ... + 792472076.

It is an arithmetic number, because the mean of its divisors is an integer number (1502513897856).

Almost surely, 2^{11001001011011} is an apocalyptic number.

11001001011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11001001011011 is a deficient number, since it is larger than the sum of its proper divisors (1019110171837).

11001001011011 is a wasteful number, since it uses less digits than its factorization.

11001001011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584930913.

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

Adding to 11001001011011 its reverse (11011010010011), we get a palindrome (22012011021022).

The spelling of 11001001011011 in words is "eleven trillion, one billion, one million, eleven thousand, eleven".