131135203 has 2 divisors, whose sum is σ = 131135204. Its totient is φ = 131135202.

The previous prime is 131135189. The next prime is 131135227. The reversal of 131135203 is 302531131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131135203 - 2⁹ = 131134691 is a prime.

It is not a weakly prime, because it can be changed into another prime (131135233) 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, 65567601 + 65567602.

It is an arithmetic number, because the mean of its divisors is an integer number (65567602).

Almost surely, 2^131135203 is an apocalyptic number.

131135203 is a deficient number, since it is larger than the sum of its proper divisors (1).

131135203 is an equidigital number, since it uses as much as digits as its factorization.

131135203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 131135203 is about 11451.4279895566. The cubic root of 131135203 is about 508.0499710592.

Adding to 131135203 its reverse (302531131), we get a palindrome (433666334).

The spelling of 131135203 in words is "one hundred thirty-one million, one hundred thirty-five thousand, two hundred three".