320108953 has 2 divisors, whose sum is σ = 320108954. Its totient is φ = 320108952.

The previous prime is 320108951. The next prime is 320108959. The reversal of 320108953 is 359801023.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319408384 + 700569 = 17872^2 + 837^2 .

It is a cyclic number.

It is not a de Polignac number, because 320108953 - 2¹ = 320108951 is a prime.

Together with 320108951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (320108951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160054476 + 160054477.

It is an arithmetic number, because the mean of its divisors is an integer number (160054477).

Almost surely, 2^320108953 is an apocalyptic number.

It is an amenable number.

320108953 is a deficient number, since it is larger than the sum of its proper divisors (1).

320108953 is an equidigital number, since it uses as much as digits as its factorization.

320108953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 320108953 is about 17891.5888897549. The cubic root of 320108953 is about 684.0679977827.

Adding to 320108953 its reverse (359801023), we get a palindrome (679909976).

The spelling of 320108953 in words is "three hundred twenty million, one hundred eight thousand, nine hundred fifty-three".