1320320021301 has 6 divisors (see below), whose sum is σ = 1907128919670. Its totient is φ = 880213347528.

The previous prime is 1320320021297. The next prime is 1320320021323. The reversal of 1320320021301 is 1031200230231.

1320320021301 is a `hidden beast` number, since 1 + 3 + 20 + 320 + 0 + 21 + 301 = 666.

It can be written as a sum of positive squares in only one way, i.e., 775454598801 + 544865422500 = 880599^2 + 738150^2 .

It is not a de Polignac number, because 1320320021301 - 2² = 1320320021297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320320021381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73351112286 + ... + 73351112303.

It is an arithmetic number, because the mean of its divisors is an integer number (317854819945).

Almost surely, 2^{1320320021301} is an apocalyptic number.

It is an amenable number.

1320320021301 is a deficient number, since it is larger than the sum of its proper divisors (586808898369).

1320320021301 is a wasteful number, since it uses less digits than its factorization.

1320320021301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146702224595 (or 146702224592 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1320320021301 its reverse (1031200230231), we get a palindrome (2351520251532).

The spelling of 1320320021301 in words is "one trillion, three hundred twenty billion, three hundred twenty million, twenty-one thousand, three hundred one".