1004120443 has 2 divisors, whose sum is σ = 1004120444. Its totient is φ = 1004120442.

The previous prime is 1004120363. The next prime is 1004120461. The reversal of 1004120443 is 3440214001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004120443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1004120443.

It is not a weakly prime, because it can be changed into another prime (1004120483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502060221 + 502060222.

It is an arithmetic number, because the mean of its divisors is an integer number (502060222).

Almost surely, 2^1004120443 is an apocalyptic number.

1004120443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1004120443 is an equidigital number, since it uses as much as digits as its factorization.

1004120443 is an evil number, because the sum of its binary digits is even.

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

The square root of 1004120443 is about 31687.8595522007. The cubic root of 1004120443 is about 1001.3715988565.

Adding to 1004120443 its reverse (3440214001), we get a palindrome (4444334444).

The spelling of 1004120443 in words is "one billion, four million, one hundred twenty thousand, four hundred forty-three".