11111132311 has 8 divisors (see below), whose sum is σ = 11226461904. Its totient is φ = 10995907200.

The previous prime is 11111132299. The next prime is 11111132359. The reversal of 11111132311 is 11323111111.

11111132311 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 11111132311 - 2⁹ = 11111131799 is a prime.

It is a super-2 number, since 2×11111132311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111132111) 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, 197535 + ... + 247471.

It is an arithmetic number, because the mean of its divisors is an integer number (1403307738).

Almost surely, 2^11111132311 is an apocalyptic number.

11111132311 is a deficient number, since it is larger than the sum of its proper divisors (115329593).

11111132311 is a wasteful number, since it uses less digits than its factorization.

11111132311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52241.

The product of its digits is 18, while the sum is 16.

Adding to 11111132311 its reverse (11323111111), we get a palindrome (22434243422).

It can be divided in two parts, 1111 and 1132311, that multiplied together give a palindrome (1257997521).

The spelling of 11111132311 in words is "eleven billion, one hundred eleven million, one hundred thirty-two thousand, three hundred eleven".