11011111012011 has 16 divisors (see below), whose sum is σ = 16018188956928. Its totient is φ = 6672555828000.

The previous prime is 11011111011983. The next prime is 11011111012021. The reversal of 11011111012011 is 11021011111011.

It is not a de Polignac number, because 11011111012011 - 2⁷ = 11011111011883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11011111012021) 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, 20854951 + ... + 21376416.

It is an arithmetic number, because the mean of its divisors is an integer number (1001136809808).

Almost surely, 2^{11011111012011} is an apocalyptic number.

11011111012011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11011111012011 is a deficient number, since it is larger than the sum of its proper divisors (5007077944917).

11011111012011 is a wasteful number, since it uses less digits than its factorization.

11011111012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42239282.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11011111012011 its reverse (11021011111011), we get a palindrome (22032122123022).

The spelling of 11011111012011 in words is "eleven trillion, eleven billion, one hundred eleven million, twelve thousand, eleven".