11011230311 has 4 divisors (see below), whose sum is σ = 11042423952. Its totient is φ = 10980036672.

The previous prime is 11011230301. The next prime is 11011230317. The reversal of 11011230311 is 11303211011.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 11011230311 - 2¹⁰ = 11011229287 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 (11011230317) 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 3 ways as a sum of consecutive naturals, for example, 15596291 + ... + 15596996.

It is an arithmetic number, because the mean of its divisors is an integer number (2760605988).

Almost surely, 2^11011230311 is an apocalyptic number.

11011230311 is a deficient number, since it is larger than the sum of its proper divisors (31193641).

11011230311 is an equidigital number, since it uses as much as digits as its factorization.

11011230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31193640.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11011230311 its reverse (11303211011), we get a palindrome (22314441322).

The spelling of 11011230311 in words is "eleven billion, eleven million, two hundred thirty thousand, three hundred eleven".