131340263 has 2 divisors, whose sum is σ = 131340264. Its totient is φ = 131340262.

The previous prime is 131340247. The next prime is 131340271. The reversal of 131340263 is 362043131.

It is a strong prime.

It is an emirp because it is prime and its reverse (362043131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131340263 - 2⁴ = 131340247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131340763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65670131 + 65670132.

It is an arithmetic number, because the mean of its divisors is an integer number (65670132).

Almost surely, 2^131340263 is an apocalyptic number.

131340263 is a deficient number, since it is larger than the sum of its proper divisors (1).

131340263 is an equidigital number, since it uses as much as digits as its factorization.

131340263 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.

The square root of 131340263 is about 11460.3779606085. The cubic root of 131340263 is about 508.3146507392.

Adding to 131340263 its reverse (362043131), we get a palindrome (493383394).

The spelling of 131340263 in words is "one hundred thirty-one million, three hundred forty thousand, two hundred sixty-three".