11031320311 has 8 divisors (see below), whose sum is σ = 12035819664. Its totient is φ = 10027096320.

The previous prime is 11031320303. The next prime is 11031320317. The reversal of 11031320311 is 11302313011.

11031320311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11031320311 - 2³ = 11031320303 is a prime.

It is a super-2 number, since 2×11031320311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031320317) 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 7 ways as a sum of consecutive naturals, for example, 19911 + ... + 149863.

It is an arithmetic number, because the mean of its divisors is an integer number (1504477458).

Almost surely, 2^11031320311 is an apocalyptic number.

11031320311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11031320311 is a deficient number, since it is larger than the sum of its proper divisors (1004499353).

11031320311 is a wasteful number, since it uses less digits than its factorization.

11031320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137681.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11031320311 its reverse (11302313011), we get a palindrome (22333633322).

The spelling of 11031320311 in words is "eleven billion, thirty-one million, three hundred twenty thousand, three hundred eleven".