1132111111 has 4 divisors (see below), whose sum is σ = 1153471752. Its totient is φ = 1110750472.

The previous prime is 1132111091. The next prime is 1132111151. The reversal of 1132111111 is 1111112311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1132111111 is a prime.

It is a Duffinian number.

1132111111 is a modest number, since divided by 111111 gives 1132 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1132111091 and 1132111100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132111151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10680241 + ... + 10680346.

It is an arithmetic number, because the mean of its divisors is an integer number (288367938).

Almost surely, 2^1132111111 is an apocalyptic number.

1132111111 is a deficient number, since it is larger than the sum of its proper divisors (21360641).

1132111111 is an equidigital number, since it uses as much as digits as its factorization.

1132111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21360640.

The product of its digits is 6, while the sum is 13.

The square root of 1132111111 is about 33646.8588578488. The cubic root of 1132111111 is about 1042.2286744705.

Adding to 1132111111 its reverse (1111112311), we get a palindrome (2243223422).

The spelling of 1132111111 in words is "one billion, one hundred thirty-two million, one hundred eleven thousand, one hundred eleven".