11520648228109 has 2 divisors, whose sum is σ = 11520648228110. Its totient is φ = 11520648228108.

The previous prime is 11520648228097. The next prime is 11520648228119. The reversal of 11520648228109 is 90182284602511.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10010706160900 + 1509942067209 = 3163970^2 + 1228797^2 .

It is a cyclic number.

It is not a de Polignac number, because 11520648228109 - 2⁹ = 11520648227597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11520648228119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760324114054 + 5760324114055.

It is an arithmetic number, because the mean of its divisors is an integer number (5760324114055).

Almost surely, 2^{11520648228109} is an apocalyptic number.

It is an amenable number.

11520648228109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520648228109 is an equidigital number, since it uses as much as digits as its factorization.

11520648228109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 11520648228109 in words is "eleven trillion, five hundred twenty billion, six hundred forty-eight million, two hundred twenty-eight thousand, one hundred nine".