11903115689 has 2 divisors, whose sum is σ = 11903115690. Its totient is φ = 11903115688.

The previous prime is 11903115671. The next prime is 11903115703. The reversal of 11903115689 is 98651130911.

11903115689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9981608464 + 1921507225 = 99908^2 + 43835^2 .

It is an emirp because it is prime and its reverse (98651130911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11903115689 - 2¹⁶ = 11903050153 is a prime.

It is not a weakly prime, because it can be changed into another prime (11903115629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5951557844 + 5951557845.

It is an arithmetic number, because the mean of its divisors is an integer number (5951557845).

Almost surely, 2^11903115689 is an apocalyptic number.

It is an amenable number.

11903115689 is a deficient number, since it is larger than the sum of its proper divisors (1).

11903115689 is an equidigital number, since it uses as much as digits as its factorization.

11903115689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 44.

The spelling of 11903115689 in words is "eleven billion, nine hundred three million, one hundred fifteen thousand, six hundred eighty-nine".