11122311 has 16 divisors (see below), whose sum is σ = 15402464. Its totient is φ = 7133184.

The previous prime is 11122297. The next prime is 11122333. The reversal of 11122311 is 11322111.

It is not a de Polignac number, because 11122311 - 2⁶ = 11122247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10251 + ... + 11283.

It is an arithmetic number, because the mean of its divisors is an integer number (962654).

Almost surely, 2^11122311 is an apocalyptic number.

11122311 is a deficient number, since it is larger than the sum of its proper divisors (4280153).

11122311 is a wasteful number, since it uses less digits than its factorization.

11122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its digits is 12, while the sum is 12.

The square root of 11122311 is about 3335.0128935283. The cubic root of 11122311 is about 223.2192672631.

Adding to 11122311 its reverse (11322111), we get a palindrome (22444422).

It can be divided in two parts, 111 and 22311, that added together give a palindrome (22422).

The spelling of 11122311 in words is "eleven million, one hundred twenty-two thousand, three hundred eleven".