321023220040273 has 2 divisors, whose sum is σ = 321023220040274. Its totient is φ = 321023220040272.

The previous prime is 321023220040261. The next prime is 321023220040331. The reversal of 321023220040273 is 372040022320123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300364531536784 + 20658688503489 = 17331028^2 + 4545183^2 .

It is an emirp because it is prime and its reverse (372040022320123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321023220040273 - 2¹⁷ = 321023219909201 is a prime.

It is not a weakly prime, because it can be changed into another prime (321023220040213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160511610020136 + 160511610020137.

It is an arithmetic number, because the mean of its divisors is an integer number (160511610020137).

Almost surely, 2^{321023220040273} is an apocalyptic number.

It is an amenable number.

321023220040273 is a deficient number, since it is larger than the sum of its proper divisors (1).

321023220040273 is an equidigital number, since it uses as much as digits as its factorization.

321023220040273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 31.

Adding to 321023220040273 its reverse (372040022320123), we get a palindrome (693063242360396).

The spelling of 321023220040273 in words is "three hundred twenty-one trillion, twenty-three billion, two hundred twenty million, forty thousand, two hundred seventy-three".