1321332023441 has 4 divisors (see below), whose sum is σ = 1334160489792. Its totient is φ = 1308503557092.

The previous prime is 1321332023353. The next prime is 1321332023449. The reversal of 1321332023441 is 1443202331231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1321332023441 - 2¹⁴ = 1321332007057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321332023449) 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, 6414233021 + ... + 6414233226.

It is an arithmetic number, because the mean of its divisors is an integer number (333540122448).

Almost surely, 2^{1321332023441} is an apocalyptic number.

It is an amenable number.

1321332023441 is a deficient number, since it is larger than the sum of its proper divisors (12828466351).

1321332023441 is a wasteful number, since it uses less digits than its factorization.

1321332023441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12828466350.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1321332023441 its reverse (1443202331231), we get a palindrome (2764534354672).

The spelling of 1321332023441 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-two million, twenty-three thousand, four hundred forty-one".