1204012443 has 4 divisors (see below), whose sum is σ = 1605349928. Its totient is φ = 802674960.

The previous prime is 1204012429. The next prime is 1204012493. The reversal of 1204012443 is 3442104021.

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

It is not a de Polignac number, because 1204012443 - 2¹³ = 1204004251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204012493) 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 3 ways as a sum of consecutive naturals, for example, 200668738 + ... + 200668743.

It is an arithmetic number, because the mean of its divisors is an integer number (401337482).

Almost surely, 2^1204012443 is an apocalyptic number.

1204012443 is a deficient number, since it is larger than the sum of its proper divisors (401337485).

1204012443 is an equidigital number, since it uses as much as digits as its factorization.

1204012443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401337484.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1204012443 is about 34698.8824459809. The cubic root of 1204012443 is about 1063.8416562352.

Adding to 1204012443 its reverse (3442104021), we get a palindrome (4646116464).

The spelling of 1204012443 in words is "one billion, two hundred four million, twelve thousand, four hundred forty-three".