320131103213 has 2 divisors, whose sum is σ = 320131103214. Its totient is φ = 320131103212.

The previous prime is 320131103207. The next prime is 320131103233. The reversal of 320131103213 is 312301131023.

It is an a-pointer prime, because the next prime (320131103233) can be obtained adding 320131103213 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177263734729 + 142867368484 = 421027^2 + 377978^2 .

It is a cyclic number.

It is not a de Polignac number, because 320131103213 - 2²² = 320126908909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320131103233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160065551606 + 160065551607.

It is an arithmetic number, because the mean of its divisors is an integer number (160065551607).

Almost surely, 2^320131103213 is an apocalyptic number.

It is an amenable number.

320131103213 is a deficient number, since it is larger than the sum of its proper divisors (1).

320131103213 is an equidigital number, since it uses as much as digits as its factorization.

320131103213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 320131103213 its reverse (312301131023), we get a palindrome (632432234236).

The spelling of 320131103213 in words is "three hundred twenty billion, one hundred thirty-one million, one hundred three thousand, two hundred thirteen".