11915022289 has 2 divisors, whose sum is σ = 11915022290. Its totient is φ = 11915022288.

The previous prime is 11915022269. The next prime is 11915022299. The reversal of 11915022289 is 98222051911.

11915022289 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., 8617965889 + 3297056400 = 92833^2 + 57420^2 .

It is an emirp because it is prime and its reverse (98222051911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11915022289 - 2²⁹ = 11378151377 is a prime.

It is a super-2 number, since 2×11915022289² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11915022209) 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, 5957511144 + 5957511145.

It is an arithmetic number, because the mean of its divisors is an integer number (5957511145).

Almost surely, 2^11915022289 is an apocalyptic number.

It is an amenable number.

11915022289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11915022289 is an equidigital number, since it uses as much as digits as its factorization.

11915022289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 11915022289 in words is "eleven billion, nine hundred fifteen million, twenty-two thousand, two hundred eighty-nine".