11112312011 has 4 divisors (see below), whose sum is σ = 11118285024. Its totient is φ = 11106339000.

The previous prime is 11112312007. The next prime is 11112312059. The reversal of 11112312011 is 11021321111.

11112312011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11021321111 = 419 ⋅26303869.

It is a cyclic number.

It is not a de Polignac number, because 11112312011 - 2² = 11112312007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112312061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2983715 + ... + 2987436.

It is an arithmetic number, because the mean of its divisors is an integer number (2779571256).

Almost surely, 2^11112312011 is an apocalyptic number.

11112312011 is a deficient number, since it is larger than the sum of its proper divisors (5973013).

11112312011 is an equidigital number, since it uses as much as digits as its factorization.

11112312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973012.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 11112312011 its reverse (11021321111), we get a palindrome (22133633122).

The spelling of 11112312011 in words is "eleven billion, one hundred twelve million, three hundred twelve thousand, eleven".