131000320232321 has 2 divisors, whose sum is σ = 131000320232322. Its totient is φ = 131000320232320.

The previous prime is 131000320232317. The next prime is 131000320232371. The reversal of 131000320232321 is 123232023000131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93783439114225 + 37216881118096 = 9684185^2 + 6100564^2 .

It is a cyclic number.

It is not a de Polignac number, because 131000320232321 - 2² = 131000320232317 is a prime.

It is a super-2 number, since 2×131000320232321² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (131000320232371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65500160116160 + 65500160116161.

It is an arithmetic number, because the mean of its divisors is an integer number (65500160116161).

Almost surely, 2^{131000320232321} is an apocalyptic number.

It is an amenable number.

131000320232321 is a deficient number, since it is larger than the sum of its proper divisors (1).

131000320232321 is an equidigital number, since it uses as much as digits as its factorization.

131000320232321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131000320232321 its reverse (123232023000131), we get a palindrome (254232343232452).

The spelling of 131000320232321 in words is "one hundred thirty-one trillion, three hundred twenty million, two hundred thirty-two thousand, three hundred twenty-one".