131131003 has 2 divisors, whose sum is σ = 131131004. Its totient is φ = 131131002.

The previous prime is 131131001. The next prime is 131131009. The reversal of 131131003 is 300131131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (300131131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131131003 - 2¹ = 131131001 is a prime.

Together with 131131001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131131001) 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, 65565501 + 65565502.

It is an arithmetic number, because the mean of its divisors is an integer number (65565502).

Almost surely, 2^131131003 is an apocalyptic number.

131131003 is a deficient number, since it is larger than the sum of its proper divisors (1).

131131003 is an equidigital number, since it uses as much as digits as its factorization.

131131003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131131003 is about 11451.2446048454. The cubic root of 131131003 is about 508.0445470576.

Adding to 131131003 its reverse (300131131), we get a palindrome (431262134).

The spelling of 131131003 in words is "one hundred thirty-one million, one hundred thirty-one thousand, three".