131305003 has 2 divisors, whose sum is σ = 131305004. Its totient is φ = 131305002.

The previous prime is 131304977. The next prime is 131305019. The reversal of 131305003 is 300503131.

It is an a-pointer prime, because the next prime (131305019) can be obtained adding 131305003 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131305003 is a prime.

It is not a weakly prime, because it can be changed into another prime (131305033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65652501 + 65652502.

It is an arithmetic number, because the mean of its divisors is an integer number (65652502).

Almost surely, 2^131305003 is an apocalyptic number.

131305003 is a deficient number, since it is larger than the sum of its proper divisors (1).

131305003 is an equidigital number, since it uses as much as digits as its factorization.

131305003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 131305003 is about 11458.8395136680. The cubic root of 131305003 is about 508.2691587773.

Adding to 131305003 its reverse (300503131), we get a palindrome (431808134).

The spelling of 131305003 in words is "one hundred thirty-one million, three hundred five thousand, three".