111310322009 has 4 divisors (see below), whose sum is σ = 112057371300. Its totient is φ = 110563272720.

The previous prime is 111310321987. The next prime is 111310322029. The reversal of 111310322009 is 900223013111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 900223013111 = 87793 ⋅10253927.

It can be written as a sum of positive squares in 2 ways, for example, as 58973694025 + 52336627984 = 242845^2 + 228772^2 .

It is a cyclic number.

It is not a de Polignac number, because 111310322009 - 2¹² = 111310317913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111310322029) 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, 373524422 + ... + 373524719.

It is an arithmetic number, because the mean of its divisors is an integer number (28014342825).

Almost surely, 2^111310322009 is an apocalyptic number.

It is an amenable number.

111310322009 is a deficient number, since it is larger than the sum of its proper divisors (747049291).

111310322009 is an equidigital number, since it uses as much as digits as its factorization.

111310322009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747049290.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 111310322009 in words is "one hundred eleven billion, three hundred ten million, three hundred twenty-two thousand, nine".