11111011001011 has 8 divisors (see below), whose sum is σ = 11221092149904. Its totient is φ = 11000931247200.

The previous prime is 11111011001009. The next prime is 11111011001017. The reversal of 11111011001011 is 11010011011111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11111011001011 - 2¹ = 11111011001009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111011001017) 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, 24116536 + ... + 24572938.

It is an arithmetic number, because the mean of its divisors is an integer number (1402636518738).

Almost surely, 2^{11111011001011} is an apocalyptic number.

11111011001011 is a deficient number, since it is larger than the sum of its proper divisors (110081148893).

11111011001011 is a wasteful number, since it uses less digits than its factorization.

11111011001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697541.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 11111011001011 its reverse (11010011011111), we get a palindrome (22121022012122).

It can be divided in two parts, 1111101 and 1001011, that added together give a palindrome (2112112).

The spelling of 11111011001011 in words is "eleven trillion, one hundred eleven billion, eleven million, one thousand, eleven".