11111332231 has 8 divisors (see below), whose sum is σ = 11143423584. Its totient is φ = 11079288480.

The previous prime is 11111332217. The next prime is 11111332237. The reversal of 11111332231 is 13223311111.

11111332231 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 11111332231 - 2⁷ = 11111332103 is a prime.

It is a super-2 number, since 2×11111332231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111332199 and 11111332208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111332237) 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, 485046 + ... + 507436.

It is an arithmetic number, because the mean of its divisors is an integer number (1392927948).

Almost surely, 2^11111332231 is an apocalyptic number.

11111332231 is a deficient number, since it is larger than the sum of its proper divisors (32091353).

11111332231 is an equidigital number, since it uses as much as digits as its factorization.

11111332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23801.

The product of its digits is 108, while the sum is 19.

Adding to 11111332231 its reverse (13223311111), we get a palindrome (24334643342).

The spelling of 11111332231 in words is "eleven billion, one hundred eleven million, three hundred thirty-two thousand, two hundred thirty-one".