1320322421023 has 4 divisors (see below), whose sum is σ = 1320374064040. Its totient is φ = 1320270778008.

The previous prime is 1320322420987. The next prime is 1320322421051. The reversal of 1320322421023 is 3201242230231.

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

It is a cyclic number.

It is not a de Polignac number, because 1320322421023 - 2⁹ = 1320322420511 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 (1320322421123) 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, 25783140 + ... + 25834297.

It is an arithmetic number, because the mean of its divisors is an integer number (330093516010).

Almost surely, 2^{1320322421023} is an apocalyptic number.

1320322421023 is a deficient number, since it is larger than the sum of its proper divisors (51643017).

1320322421023 is an equidigital number, since it uses as much as digits as its factorization.

1320322421023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51643016.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1320322421023 its reverse (3201242230231), we get a palindrome (4521564651254).

The spelling of 1320322421023 in words is "one trillion, three hundred twenty billion, three hundred twenty-two million, four hundred twenty-one thousand, twenty-three".