1111100001011 has 24 divisors (see below), whose sum is σ = 1500023441664. Its totient is φ = 799192798560.

The previous prime is 1111100000977. The next prime is 1111100001041. The reversal of 1111100001011 is 1101000011111.

It is not a de Polignac number, because 1111100001011 - 2²² = 1111095806707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111100001011.

It is not an unprimeable number, because it can be changed into a prime (1111100001041) 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 23 ways as a sum of consecutive naturals, for example, 42678911 + ... + 42704936.

It is an arithmetic number, because the mean of its divisors is an integer number (62500976736).

Almost surely, 2^{1111100001011} is an apocalyptic number.

1111100001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1111100001011 is a deficient number, since it is larger than the sum of its proper divisors (388923440653).

1111100001011 is a wasteful number, since it uses less digits than its factorization.

1111100001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85383891 (or 85383878 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 1111100001011 its reverse (1101000011111), we get a palindrome (2212100012122).

The spelling of 1111100001011 in words is "one trillion, one hundred eleven billion, one hundred million, one thousand, eleven".