10000131232321 has 2 divisors, whose sum is σ = 10000131232322. Its totient is φ = 10000131232320.

The previous prime is 10000131232279. The next prime is 10000131232337. The reversal of 10000131232321 is 12323213100001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9777785033025 + 222346199296 = 3126945^2 + 471536^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000131232321 - 2¹¹ = 10000131230273 is a prime.

It is not a weakly prime, because it can be changed into another prime (10000131230321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000065616160 + 5000065616161.

It is an arithmetic number, because the mean of its divisors is an integer number (5000065616161).

Almost surely, 2^{10000131232321} is an apocalyptic number.

It is an amenable number.

10000131232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000131232321 is an equidigital number, since it uses as much as digits as its factorization.

10000131232321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10000131232321 its reverse (12323213100001), we get a palindrome (22323344332322).

The spelling of 10000131232321 in words is "ten trillion, one hundred thirty-one million, two hundred thirty-two thousand, three hundred twenty-one".