11980105 has 8 divisors (see below), whose sum is σ = 14840064. Its totient is φ = 9274800.

The previous prime is 11980099. The next prime is 11980109. The reversal of 11980105 is 50108911.

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

It is not a de Polignac number, because 11980105 - 2⁹ = 11979593 is a prime.

It is a super-2 number, since 2×11980105² = 287045831622050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11980105.

It is not an unprimeable number, because it can be changed into a prime (11980109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38491 + ... + 38800.

It is an arithmetic number, because the mean of its divisors is an integer number (1855008).

Almost surely, 2^11980105 is an apocalyptic number.

It is an amenable number.

11980105 is a deficient number, since it is larger than the sum of its proper divisors (2859959).

11980105 is an equidigital number, since it uses as much as digits as its factorization.

11980105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77327.

The product of its (nonzero) digits is 360, while the sum is 25.

The square root of 11980105 is about 3461.2288280320. The cubic root of 11980105 is about 228.8162558034.

The spelling of 11980105 in words is "eleven million, nine hundred eighty thousand, one hundred five".