11111110001011 has 8 divisors (see below), whose sum is σ = 11146099514400. Its totient is φ = 11076175289088.

The previous prime is 11111110000999. The next prime is 11111110001027. The reversal of 11111110001011 is 11010001111111.

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 11111110001011 - 2⁷ = 11111110000883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111110001041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13294206 + ... + 14105251.

It is an arithmetic number, because the mean of its divisors is an integer number (1393262439300).

Almost surely, 2^{11111110001011} is an apocalyptic number.

11111110001011 is a deficient number, since it is larger than the sum of its proper divisors (34989513389).

11111110001011 is an equidigital number, since it uses as much as digits as its factorization.

11111110001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27400733.

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

Adding to 11111110001011 its reverse (11010001111111), we get a palindrome (22121111112122).

The spelling of 11111110001011 in words is "eleven trillion, one hundred eleven billion, one hundred ten million, one thousand, eleven".