11100012011 has 16 divisors (see below), whose sum is σ = 12841180128. Its totient is φ = 9482688000.

The previous prime is 11100011971. The next prime is 11100012013. The reversal of 11100012011 is 11021000111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11100012011 - 2⁶ = 11100011947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11100012011.

It is not an unprimeable number, because it can be changed into a prime (11100012013) 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, 76661 + ... + 167561.

It is an arithmetic number, because the mean of its divisors is an integer number (802573758).

Almost surely, 2^11100012011 is an apocalyptic number.

11100012011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11100012011 is a deficient number, since it is larger than the sum of its proper divisors (1741168117).

11100012011 is a wasteful number, since it uses less digits than its factorization.

11100012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91582.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 11100012011 its reverse (11021000111), we get a palindrome (22121012122).

The spelling of 11100012011 in words is "eleven billion, one hundred million, twelve thousand, eleven".