1123303203109 has 2 divisors, whose sum is σ = 1123303203110. Its totient is φ = 1123303203108.

The previous prime is 1123303203067. The next prime is 1123303203163. The reversal of 1123303203109 is 9013023033211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 685824141025 + 437479062084 = 828145^2 + 661422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123303203109 - 2¹⁷ = 1123303072037 is a prime.

It is a super-2 number, since 2×1123303203109² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123303243109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561651601554 + 561651601555.

It is an arithmetic number, because the mean of its divisors is an integer number (561651601555).

Almost surely, 2^{1123303203109} is an apocalyptic number.

It is an amenable number.

1123303203109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123303203109 is an equidigital number, since it uses as much as digits as its factorization.

1123303203109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 1123303203109 in words is "one trillion, one hundred twenty-three billion, three hundred three million, two hundred three thousand, one hundred nine".