11001001289 has 2 divisors, whose sum is σ = 11001001290. Its totient is φ = 11001001288.

The previous prime is 11001001267. The next prime is 11001001307. The reversal of 11001001289 is 98210010011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8608128400 + 2392872889 = 92780^2 + 48917^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001001289 - 2¹² = 11000997193 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001001889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500500644 + 5500500645.

It is an arithmetic number, because the mean of its divisors is an integer number (5500500645).

Almost surely, 2^11001001289 is an apocalyptic number.

It is an amenable number.

11001001289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001001289 is an equidigital number, since it uses as much as digits as its factorization.

11001001289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 11001001289 in words is "eleven billion, one million, one thousand, two hundred eighty-nine".