111130653866 has 4 divisors (see below), whose sum is σ = 166695980802. Its totient is φ = 55565326932.

The previous prime is 111130653863. The next prime is 111130653869. The reversal of 111130653866 is 668356031111.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (111130653863) and next prime (111130653869).

It can be written as a sum of positive squares in only one way, i.e., 104633487841 + 6497166025 = 323471^2 + 80605^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111130653863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27782663465 + ... + 27782663468.

Almost surely, 2^111130653866 is an apocalyptic number.

111130653866 is a deficient number, since it is larger than the sum of its proper divisors (55565326936).

111130653866 is an equidigital number, since it uses as much as digits as its factorization.

111130653866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55565326935.

The product of its (nonzero) digits is 77760, while the sum is 41.

Adding to 111130653866 its reverse (668356031111), we get a palindrome (779486684977).

The spelling of 111130653866 in words is "one hundred eleven billion, one hundred thirty million, six hundred fifty-three thousand, eight hundred sixty-six".