1113112309 has 2 divisors, whose sum is σ = 1113112310. Its totient is φ = 1113112308.

The previous prime is 1113112303. The next prime is 1113112313. The reversal of 1113112309 is 9032113111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 799645284 + 313467025 = 28278^2 + 17705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113112309 - 2⁵ = 1113112277 is a prime.

It is a super-2 number, since 2×1113112309² = 2478038024894622962, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1113112309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113112303) 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 as a sum of consecutive naturals, namely, 556556154 + 556556155.

It is an arithmetic number, because the mean of its divisors is an integer number (556556155).

Almost surely, 2^1113112309 is an apocalyptic number.

It is an amenable number.

1113112309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113112309 is an equidigital number, since it uses as much as digits as its factorization.

1113112309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1113112309 is about 33363.3377976485. The cubic root of 1113112309 is about 1036.3656144228.

The spelling of 1113112309 in words is "one billion, one hundred thirteen million, one hundred twelve thousand, three hundred nine".