11112012012011 has 4 divisors (see below), whose sum is σ = 11222031933024. Its totient is φ = 11001992091000.

The previous prime is 11112012011999. The next prime is 11112012012083. The reversal of 11112012012011 is 11021021021111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112012012011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112012012091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55009960355 + ... + 55009960556.

It is an arithmetic number, because the mean of its divisors is an integer number (2805507983256).

Almost surely, 2^{11112012012011} is an apocalyptic number.

11112012012011 is a deficient number, since it is larger than the sum of its proper divisors (110019921013).

11112012012011 is a wasteful number, since it uses less digits than its factorization.

11112012012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110019921012.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 11112012012011 its reverse (11021021021111), we get a palindrome (22133033033122).

The spelling of 11112012012011 in words is "eleven trillion, one hundred twelve billion, twelve million, twelve thousand, eleven".