131012224204321 has 2 divisors, whose sum is σ = 131012224204322. Its totient is φ = 131012224204320.

The previous prime is 131012224204319. The next prime is 131012224204331. The reversal of 131012224204321 is 123402422210131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131011373840400 + 850363921 = 11446020^2 + 29161^2 .

It is a cyclic number.

It is not a de Polignac number, because 131012224204321 - 2¹ = 131012224204319 is a prime.

Together with 131012224204319, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 131012224204321.

It is not a weakly prime, because it can be changed into another prime (131012224204331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65506112102160 + 65506112102161.

It is an arithmetic number, because the mean of its divisors is an integer number (65506112102161).

Almost surely, 2^{131012224204321} is an apocalyptic number.

It is an amenable number.

131012224204321 is a deficient number, since it is larger than the sum of its proper divisors (1).

131012224204321 is an equidigital number, since it uses as much as digits as its factorization.

131012224204321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 131012224204321 its reverse (123402422210131), we get a palindrome (254414646414452).

The spelling of 131012224204321 in words is "one hundred thirty-one trillion, twelve billion, two hundred twenty-four million, two hundred four thousand, three hundred twenty-one".