11011320312311 has 16 divisors (see below), whose sum is σ = 12537826679808. Its totient is φ = 9572615791200.

The previous prime is 11011320312287. The next prime is 11011320312313. The reversal of 11011320312311 is 11321302311011.

It is not a de Polignac number, because 11011320312311 - 2⁴² = 6613273801207 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 (11011320312313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4564655 + ... + 6546656.

It is an arithmetic number, because the mean of its divisors is an integer number (783614167488).

Almost surely, 2^{11011320312311} is an apocalyptic number.

11011320312311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11011320312311 is a deficient number, since it is larger than the sum of its proper divisors (1526506367497).

11011320312311 is a wasteful number, since it uses less digits than its factorization.

11011320312311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11115262.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 11011320312311 its reverse (11321302311011), we get a palindrome (22332622623322).

The spelling of 11011320312311 in words is "eleven trillion, eleven billion, three hundred twenty million, three hundred twelve thousand, three hundred eleven".