131312201 has 2 divisors, whose sum is σ = 131312202. Its totient is φ = 131312200.

The previous prime is 131312177. The next prime is 131312213. The reversal of 131312201 is 102213131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94090000 + 37222201 = 9700^2 + 6101^2 .

It is a cyclic number.

It is not a de Polignac number, because 131312201 - 2¹⁰ = 131311177 is a prime.

It is not a weakly prime, because it can be changed into another prime (131312281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65656100 + 65656101.

It is an arithmetic number, because the mean of its divisors is an integer number (65656101).

Almost surely, 2^131312201 is an apocalyptic number.

It is an amenable number.

131312201 is a deficient number, since it is larger than the sum of its proper divisors (1).

131312201 is an equidigital number, since it uses as much as digits as its factorization.

131312201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131312201 is about 11459.1535900345. The cubic root of 131312201 is about 508.2784461984.

Adding to 131312201 its reverse (102213131), we get a palindrome (233525332).

The spelling of 131312201 in words is "one hundred thirty-one million, three hundred twelve thousand, two hundred one".