111010999999 has 16 divisors (see below), whose sum is σ = 114815508480. Its totient is φ = 107279076960.

The previous prime is 111010999963. The next prime is 111011000017. The reversal of 111010999999 is 999999010111.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111010999999 is a prime.

It is a Duffinian number.

111010999999 is a modest number, since divided by 999999 gives 111010 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010999909) 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 in 15 ways as a sum of consecutive naturals, for example, 1529862 + ... + 1600780.

It is an arithmetic number, because the mean of its divisors is an integer number (7175969280).

Almost surely, 2^111010999999 is an apocalyptic number.

111010999999 is a deficient number, since it is larger than the sum of its proper divisors (3804508481).

111010999999 is an equidigital number, since it uses as much as digits as its factorization.

111010999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71430.

The product of its (nonzero) digits is 531441, while the sum is 58.

The spelling of 111010999999 in words is "one hundred eleven billion, ten million, nine hundred ninety-nine thousand, nine hundred ninety-nine".