11451145220105 has 8 divisors (see below), whose sum is σ = 14338825319232. Its totient is φ = 8762615472688.

The previous prime is 11451145220027. The next prime is 11451145220111. The reversal of 11451145220105 is 50102254115411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11451145220105 - 2²⁸ = 11450876784649 is a prime.

It is a super-2 number, since 2×11451145220105² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49787587799 + ... + 49787588028.

It is an arithmetic number, because the mean of its divisors is an integer number (1792353164904).

Almost surely, 2^{11451145220105} is an apocalyptic number.

It is an amenable number.

11451145220105 is a deficient number, since it is larger than the sum of its proper divisors (2887680099127).

11451145220105 is an equidigital number, since it uses as much as digits as its factorization.

11451145220105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99575175855.

The product of its (nonzero) digits is 8000, while the sum is 32.

Adding to 11451145220105 its reverse (50102254115411), we get a palindrome (61553399335516).

The spelling of 11451145220105 in words is "eleven trillion, four hundred fifty-one billion, one hundred forty-five million, two hundred twenty thousand, one hundred five".