11980365443 has 16 divisors (see below), whose sum is σ = 12931993440. Its totient is φ = 11056421376.

The previous prime is 11980365433. The next prime is 11980365461. The reversal of 11980365443 is 34456308911.

11980365443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11980365443 - 2¹⁰ = 11980364419 is a prime.

It is a super-2 number, since 2×11980365443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11980365394 and 11980365403.

It is not an unprimeable number, because it can be changed into a prime (11980365433) 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 in 15 ways as a sum of consecutive naturals, for example, 2285021 + ... + 2290257.

It is an arithmetic number, because the mean of its divisors is an integer number (808249590).

Almost surely, 2^11980365443 is an apocalyptic number.

11980365443 is a deficient number, since it is larger than the sum of its proper divisors (951627997).

11980365443 is a wasteful number, since it uses less digits than its factorization.

11980365443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 11980365443 in words is "eleven billion, nine hundred eighty million, three hundred sixty-five thousand, four hundred forty-three".