11212313011 has 4 divisors (see below), whose sum is σ = 11233751992. Its totient is φ = 11190874032.

The previous prime is 11212312999. The next prime is 11212313023. The reversal of 11212313011 is 11031321211.

It is a happy number.

11212313011 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.

It is an interprime number because it is at equal distance from previous prime (11212312999) and next prime (11212313023).

It is a cyclic number.

It is not a de Polignac number, because 11212313011 - 2²⁷ = 11078095283 is a prime.

It is a super-2 number, since 2×11212313011² (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 (11212313051) 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, 10718706 + ... + 10719751.

It is an arithmetic number, because the mean of its divisors is an integer number (2808437998).

Almost surely, 2^11212313011 is an apocalyptic number.

11212313011 is a deficient number, since it is larger than the sum of its proper divisors (21438981).

11212313011 is an equidigital number, since it uses as much as digits as its factorization.

11212313011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21438980.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11212313011 its reverse (11031321211), we get a palindrome (22243634222).

It can be divided in two parts, 1121 and 2313011, that added together give a palindrome (2314132).

The spelling of 11212313011 in words is "eleven billion, two hundred twelve million, three hundred thirteen thousand, eleven".