320313132553 has 2 divisors, whose sum is σ = 320313132554. Its totient is φ = 320313132552.

The previous prime is 320313132527. The next prime is 320313132649. The reversal of 320313132553 is 355231313023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245076482704 + 75236649849 = 495052^2 + 274293^2 .

It is a cyclic number.

It is not a de Polignac number, because 320313132553 - 2⁵ = 320313132521 is a prime.

It is not a weakly prime, because it can be changed into another prime (320313132523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160156566276 + 160156566277.

It is an arithmetic number, because the mean of its divisors is an integer number (160156566277).

Almost surely, 2^320313132553 is an apocalyptic number.

It is an amenable number.

320313132553 is a deficient number, since it is larger than the sum of its proper divisors (1).

320313132553 is an equidigital number, since it uses as much as digits as its factorization.

320313132553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 31.

Adding to 320313132553 its reverse (355231313023), we get a palindrome (675544445576).

The spelling of 320313132553 in words is "three hundred twenty billion, three hundred thirteen million, one hundred thirty-two thousand, five hundred fifty-three".