1321324004041 has 4 divisors (see below), whose sum is σ = 1321390219284. Its totient is φ = 1321257788800.

The previous prime is 1321324004023. The next prime is 1321324004047. The reversal of 1321324004041 is 1404004231231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1214800752400 + 106523251641 = 1102180^2 + 326379^2 .

It is a cyclic number.

It is not a de Polignac number, because 1321324004041 - 2¹⁷ = 1321323872969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321324003997 and 1321324004015.

It is not an unprimeable number, because it can be changed into a prime (1321324004047) 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, 33077680 + ... + 33117601.

It is an arithmetic number, because the mean of its divisors is an integer number (330347554821).

Almost surely, 2^{1321324004041} is an apocalyptic number.

It is an amenable number.

1321324004041 is a deficient number, since it is larger than the sum of its proper divisors (66215243).

1321324004041 is an equidigital number, since it uses as much as digits as its factorization.

1321324004041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66215242.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1321324004041 its reverse (1404004231231), we get a palindrome (2725328235272).

The spelling of 1321324004041 in words is "one trillion, three hundred twenty-one billion, three hundred twenty-four million, four thousand, forty-one".