1321331012341 has 4 divisors (see below), whose sum is σ = 1336177428300. Its totient is φ = 1306484596384.

The previous prime is 1321331012317. The next prime is 1321331012387. The reversal of 1321331012341 is 1432101331231.

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 922279805316 + 399051207025 = 960354^2 + 631705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321331012341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321331013341) 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, 7423207846 + ... + 7423208023.

It is an arithmetic number, because the mean of its divisors is an integer number (334044357075).

Almost surely, 2^{1321331012341} is an apocalyptic number.

It is an amenable number.

1321331012341 is a deficient number, since it is larger than the sum of its proper divisors (14846415959).

1321331012341 is an equidigital number, since it uses as much as digits as its factorization.

1321331012341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14846415958.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 1321331012341 its reverse (1432101331231), we get a palindrome (2753432343572).

The spelling of 1321331012341 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-one million, twelve thousand, three hundred forty-one".