320213405263 has 2 divisors, whose sum is σ = 320213405264. Its totient is φ = 320213405262.

The previous prime is 320213405249. The next prime is 320213405279. The reversal of 320213405263 is 362504312023.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320213405263 - 2³³ = 311623470671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320213405363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160106702631 + 160106702632.

It is an arithmetic number, because the mean of its divisors is an integer number (160106702632).

Almost surely, 2^320213405263 is an apocalyptic number.

320213405263 is a deficient number, since it is larger than the sum of its proper divisors (1).

320213405263 is an equidigital number, since it uses as much as digits as its factorization.

320213405263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 320213405263 its reverse (362504312023), we get a palindrome (682717717286).

The spelling of 320213405263 in words is "three hundred twenty billion, two hundred thirteen million, four hundred five thousand, two hundred sixty-three".