113321309 has 2 divisors, whose sum is σ = 113321310. Its totient is φ = 113321308.

The previous prime is 113321291. The next prime is 113321353. The reversal of 113321309 is 903123311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96098809 + 17222500 = 9803^2 + 4150^2 .

It is a cyclic number.

It is not a de Polignac number, because 113321309 - 2¹⁶ = 113255773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113321389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56660654 + 56660655.

It is an arithmetic number, because the mean of its divisors is an integer number (56660655).

Almost surely, 2^113321309 is an apocalyptic number.

It is an amenable number.

113321309 is a deficient number, since it is larger than the sum of its proper divisors (1).

113321309 is an equidigital number, since it uses as much as digits as its factorization.

113321309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 113321309 is about 10645.2481887460. The cubic root of 113321309 is about 483.9166081880.

The spelling of 113321309 in words is "one hundred thirteen million, three hundred twenty-one thousand, three hundred nine".