320261534323 has 2 divisors, whose sum is σ = 320261534324. Its totient is φ = 320261534322.

The previous prime is 320261534293. The next prime is 320261534371. The reversal of 320261534323 is 323435162023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320261534323 - 2²¹ = 320259437171 is a prime.

It is not a weakly prime, because it can be changed into another prime (320261534023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160130767161 + 160130767162.

It is an arithmetic number, because the mean of its divisors is an integer number (160130767162).

Almost surely, 2^320261534323 is an apocalyptic number.

320261534323 is a deficient number, since it is larger than the sum of its proper divisors (1).

320261534323 is an equidigital number, since it uses as much as digits as its factorization.

320261534323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 34.

Adding to 320261534323 its reverse (323435162023), we get a palindrome (643696696346).

The spelling of 320261534323 in words is "three hundred twenty billion, two hundred sixty-one million, five hundred thirty-four thousand, three hundred twenty-three".