111303203309 has 2 divisors, whose sum is σ = 111303203310. Its totient is φ = 111303203308.

The previous prime is 111303203287. The next prime is 111303203339. The reversal of 111303203309 is 903302303111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71334397225 + 39968806084 = 267085^2 + 199922^2 .

It is a cyclic number.

It is not a de Polignac number, because 111303203309 - 2¹⁶ = 111303137773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111303203339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55651601654 + 55651601655.

It is an arithmetic number, because the mean of its divisors is an integer number (55651601655).

Almost surely, 2^111303203309 is an apocalyptic number.

It is an amenable number.

111303203309 is a deficient number, since it is larger than the sum of its proper divisors (1).

111303203309 is an equidigital number, since it uses as much as digits as its factorization.

111303203309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 111303203309 in words is "one hundred eleven billion, three hundred three million, two hundred three thousand, three hundred nine".