11101011001011 has 20 divisors (see below), whose sum is σ = 16584123996000. Its totient is φ = 7400168697456.

The previous prime is 11101011000983. The next prime is 11101011001049. The reversal of 11101011001011 is 11010011010111.

It is not a de Polignac number, because 11101011001011 - 2²² = 11101006806707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11101011000984 and 11101011001002.

It is not an unprimeable number, because it can be changed into a prime (11101011021011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3483211 + ... + 5859588.

It is an arithmetic number, because the mean of its divisors is an integer number (829206199800).

Almost surely, 2^{11101011001011} is an apocalyptic number.

11101011001011 is a deficient number, since it is larger than the sum of its proper divisors (5483112994989).

11101011001011 is an equidigital number, since it uses as much as digits as its factorization.

11101011001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9357480 (or 9357471 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 11101011001011 its reverse (11010011010111), we get a palindrome (22111022011122).

It can be divided in two parts, 1110101 and 1001011, that added together give a palindrome (2111112).

The spelling of 11101011001011 in words is "eleven trillion, one hundred one billion, eleven million, one thousand, eleven".