1004431613443 has 4 divisors (see below), whose sum is σ = 1018578537648. Its totient is φ = 990284689240.

The previous prime is 1004431613417. The next prime is 1004431613453. The reversal of 1004431613443 is 3443161344001.

It is a happy number.

1004431613443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1004431613443 - 2⁹ = 1004431612931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004431613399 and 1004431613408.

It is not an unprimeable number, because it can be changed into a prime (1004431613413) 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, 7073461996 + ... + 7073462137.

It is an arithmetic number, because the mean of its divisors is an integer number (254644634412).

Almost surely, 2^{1004431613443} is an apocalyptic number.

1004431613443 is a deficient number, since it is larger than the sum of its proper divisors (14146924205).

1004431613443 is an equidigital number, since it uses as much as digits as its factorization.

1004431613443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14146924204.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 1004431613443 its reverse (3443161344001), we get a palindrome (4447592957444).

The spelling of 1004431613443 in words is "one trillion, four billion, four hundred thirty-one million, six hundred thirteen thousand, four hundred forty-three".