11231112011 has 8 divisors (see below), whose sum is σ = 12876567264. Its totient is φ = 9595909440.

The previous prime is 11231112007. The next prime is 11231112017. The reversal of 11231112011 is 11021113211.

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 11231112011 - 2² = 11231112007 is a prime.

It is a super-2 number, since 2×11231112011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11231112017) 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, 2560820 + ... + 2565201.

It is an arithmetic number, because the mean of its divisors is an integer number (1609570908).

Almost surely, 2^11231112011 is an apocalyptic number.

11231112011 is a deficient number, since it is larger than the sum of its proper divisors (1645455253).

11231112011 is an equidigital number, since it uses as much as digits as its factorization.

11231112011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126341.

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

Adding to 11231112011 its reverse (11021113211), we get a palindrome (22252225222).

The spelling of 11231112011 in words is "eleven billion, two hundred thirty-one million, one hundred twelve thousand, eleven".