131001317 has 2 divisors, whose sum is σ = 131001318. Its totient is φ = 131001316.

The previous prime is 131001301. The next prime is 131001331. The reversal of 131001317 is 713100131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127260961 + 3740356 = 11281^2 + 1934^2 .

It is a cyclic number.

It is not a de Polignac number, because 131001317 - 2⁴ = 131001301 is a prime.

It is a super-2 number, since 2×131001317² = 34322690111468978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131001295 and 131001304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131001217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65500658 + 65500659.

It is an arithmetic number, because the mean of its divisors is an integer number (65500659).

Almost surely, 2^131001317 is an apocalyptic number.

It is an amenable number.

131001317 is a deficient number, since it is larger than the sum of its proper divisors (1).

131001317 is an equidigital number, since it uses as much as digits as its factorization.

131001317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63, while the sum is 17.

The square root of 131001317 is about 11445.5806755271. The cubic root of 131001317 is about 507.8770097714.

Adding to 131001317 its reverse (713100131), we get a palindrome (844101448).

The spelling of 131001317 in words is "one hundred thirty-one million, one thousand, three hundred seventeen".