11111100101011 has 8 divisors (see below), whose sum is σ = 11182052364560. Its totient is φ = 11040150127968.

The previous prime is 11111100101009. The next prime is 11111100101029. The reversal of 11111100101011 is 11010100111111.

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 11111100101011 - 2¹ = 11111100101009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111100101711) 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, 9752680 + ... + 10832218.

It is an arithmetic number, because the mean of its divisors is an integer number (1397756545570).

Almost surely, 2^{11111100101011} is an apocalyptic number.

11111100101011 is a deficient number, since it is larger than the sum of its proper divisors (70952263549).

11111100101011 is a wasteful number, since it uses less digits than its factorization.

11111100101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145253.

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

Adding to 11111100101011 its reverse (11010100111111), we get a palindrome (22121200212122).

The spelling of 11111100101011 in words is "eleven trillion, one hundred eleven billion, one hundred million, one hundred one thousand, eleven".