321203340213053 has 2 divisors, whose sum is σ = 321203340213054. Its totient is φ = 321203340213052.

The previous prime is 321203340213031. The next prime is 321203340213073. The reversal of 321203340213053 is 350312043302123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263537496210244 + 57665844002809 = 16233838^2 + 7593803^2 .

It is a cyclic number.

It is not a de Polignac number, because 321203340213053 - 2¹⁶ = 321203340147517 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321203340213073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160601670106526 + 160601670106527.

It is an arithmetic number, because the mean of its divisors is an integer number (160601670106527).

Almost surely, 2^{321203340213053} is an apocalyptic number.

It is an amenable number.

321203340213053 is a deficient number, since it is larger than the sum of its proper divisors (1).

321203340213053 is an equidigital number, since it uses as much as digits as its factorization.

321203340213053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 321203340213053 its reverse (350312043302123), we get a palindrome (671515383515176).

The spelling of 321203340213053 in words is "three hundred twenty-one trillion, two hundred three billion, three hundred forty million, two hundred thirteen thousand, fifty-three".