11101001011011 has 16 divisors (see below), whose sum is σ = 16472495990400. Its totient is φ = 7388711485704.

The previous prime is 11101001010977. The next prime is 11101001011021. The reversal of 11101001011011 is 11011010010111.

It is not a de Polignac number, because 11101001011011 - 2¹⁴ = 11101000994627 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 = 11101001010984 and 11101001011002.

It is not an unprimeable number, because it can be changed into a prime (11101001011021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332090061 + ... + 332123486.

It is an arithmetic number, because the mean of its divisors is an integer number (1029530999400).

Almost surely, 2^{11101001011011} is an apocalyptic number.

11101001011011 is a deficient number, since it is larger than the sum of its proper divisors (5371494979389).

11101001011011 is an equidigital number, since it uses as much as digits as its factorization.

11101001011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664214175 (or 664214169 counting only the distinct ones).

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

Adding to 11101001011011 its reverse (11011010010111), we get a palindrome (22112011021122).

The spelling of 11101001011011 in words is "eleven trillion, one hundred one billion, one million, eleven thousand, eleven".