2012120443 has 4 divisors (see below), whose sum is σ = 2012283000. Its totient is φ = 2011957888.

The previous prime is 2012120437. The next prime is 2012120447. The reversal of 2012120443 is 3440212102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012120443 is a prime.

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 2012120443.

It is not an unprimeable number, because it can be changed into a prime (2012120447) 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, 61030 + ... + 88027.

It is an arithmetic number, because the mean of its divisors is an integer number (503070750).

Almost surely, 2^2012120443 is an apocalyptic number.

2012120443 is a deficient number, since it is larger than the sum of its proper divisors (162557).

2012120443 is a wasteful number, since it uses less digits than its factorization.

2012120443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162556.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2012120443 is about 44856.6655359045. The cubic root of 2012120443 is about 1262.4610593224.

Adding to 2012120443 its reverse (3440212102), we get a palindrome (5452332545).

The spelling of 2012120443 in words is "two billion, twelve million, one hundred twenty thousand, four hundred forty-three".