263342204315323 has 4 divisors (see below), whose sum is σ = 300962519217520. Its totient is φ = 225721889413128.

The previous prime is 263342204315303. The next prime is 263342204315339. The reversal of 263342204315323 is 323513402243362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 263342204315323 - 2¹³ = 263342204307131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 263342204315323.

It is not an unprimeable number, because it can be changed into a prime (263342204315303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18810157451088 + ... + 18810157451101.

It is an arithmetic number, because the mean of its divisors is an integer number (75240629804380).

Almost surely, 2^{263342204315323} is an apocalyptic number.

263342204315323 is a deficient number, since it is larger than the sum of its proper divisors (37620314902197).

263342204315323 is an equidigital number, since it uses as much as digits as its factorization.

263342204315323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37620314902196.

The product of its (nonzero) digits is 1866240, while the sum is 43.

Adding to 263342204315323 its reverse (323513402243362), we get a palindrome (586855606558685).

The spelling of 263342204315323 in words is "two hundred sixty-three trillion, three hundred forty-two billion, two hundred four million, three hundred fifteen thousand, three hundred twenty-three".