1321302042241 has 8 divisors (see below), whose sum is σ = 1322902765800. Its totient is φ = 1319702213760.

The previous prime is 1321302042199. The next prime is 1321302042293. The reversal of 1321302042241 is 1422402031231.

It can be written as a sum of positive squares in 4 ways, for example, as 203291872641 + 1118010169600 = 450879^2 + 1057360^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321302042241 - 2⁷ = 1321302042113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321302046241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2754331 + ... + 3198271.

It is an arithmetic number, because the mean of its divisors is an integer number (165362845725).

Almost surely, 2^{1321302042241} is an apocalyptic number.

It is an amenable number.

1321302042241 is a deficient number, since it is larger than the sum of its proper divisors (1600723559).

1321302042241 is a wasteful number, since it uses less digits than its factorization.

1321302042241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447539.

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

Adding to 1321302042241 its reverse (1422402031231), we get a palindrome (2743704073472).

The spelling of 1321302042241 in words is "one trillion, three hundred twenty-one billion, three hundred two million, forty-two thousand, two hundred forty-one".