11005145089 has 4 divisors (see below), whose sum is σ = 11024419120. Its totient is φ = 10985871060.

The previous prime is 11005145077. The next prime is 11005145113. The reversal of 11005145089 is 98054150011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11005145089 - 2⁵ = 11005145057 is a prime.

It is a super-2 number, since 2×11005145089² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11005145009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9636159 + ... + 9637300.

It is an arithmetic number, because the mean of its divisors is an integer number (2756104780).

Almost surely, 2^11005145089 is an apocalyptic number.

It is an amenable number.

11005145089 is a deficient number, since it is larger than the sum of its proper divisors (19274031).

11005145089 is an equidigital number, since it uses as much as digits as its factorization.

11005145089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19274030.

The product of its (nonzero) digits is 7200, while the sum is 34.

The spelling of 11005145089 in words is "eleven billion, five million, one hundred forty-five thousand, eighty-nine".