131321327 has 2 divisors, whose sum is σ = 131321328. Its totient is φ = 131321326.

The previous prime is 131321321. The next prime is 131321353. The reversal of 131321327 is 723123131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131321327 - 2¹⁶ = 131255791 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131321321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65660663 + 65660664.

It is an arithmetic number, because the mean of its divisors is an integer number (65660664).

Almost surely, 2^131321327 is an apocalyptic number.

131321327 is a deficient number, since it is larger than the sum of its proper divisors (1).

131321327 is an equidigital number, since it uses as much as digits as its factorization.

131321327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 23.

The square root of 131321327 is about 11459.5517800654. The cubic root of 131321327 is about 508.2902207875.

Adding to 131321327 its reverse (723123131), we get a palindrome (854444458).

The spelling of 131321327 in words is "one hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty-seven".