11313233123209 has 2 divisors, whose sum is σ = 11313233123210. Its totient is φ = 11313233123208.

The previous prime is 11313233123131. The next prime is 11313233123221. The reversal of 11313233123209 is 90232133231311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9942846819984 + 1370386303225 = 3153228^2 + 1170635^2 .

It is a cyclic number.

It is not a de Polignac number, because 11313233123209 - 2¹⁷ = 11313232992137 is a prime.

It is not a weakly prime, because it can be changed into another prime (11313233123249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656616561604 + 5656616561605.

It is an arithmetic number, because the mean of its divisors is an integer number (5656616561605).

Almost surely, 2^{11313233123209} is an apocalyptic number.

It is an amenable number.

11313233123209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11313233123209 is an equidigital number, since it uses as much as digits as its factorization.

11313233123209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 34.

The spelling of 11313233123209 in words is "eleven trillion, three hundred thirteen billion, two hundred thirty-three million, one hundred twenty-three thousand, two hundred nine".