1304430221042 has 12 divisors (see below), whose sum is σ = 2118734294490. Its totient is φ = 602044717248.

The previous prime is 1304430221033. The next prime is 1304430221047. The reversal of 1304430221042 is 2401220344031.

It can be written as a sum of positive squares in 3 ways, for example, as 913991448841 + 390438772201 = 956029^2 + 624851^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1304430221047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1929630167 + ... + 1929630842.

Almost surely, 2^{1304430221042} is an apocalyptic number.

1304430221042 is a deficient number, since it is larger than the sum of its proper divisors (814304073448).

1304430221042 is a wasteful number, since it uses less digits than its factorization.

1304430221042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859261037 (or 3859261024 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1304430221042 its reverse (2401220344031), we get a palindrome (3705650565073).

The spelling of 1304430221042 in words is "one trillion, three hundred four billion, four hundred thirty million, two hundred twenty-one thousand, forty-two".