131303201 has 2 divisors, whose sum is σ = 131303202. Its totient is φ = 131303200.

The previous prime is 131303147. The next prime is 131303203. The reversal of 131303201 is 102303131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78304801 + 52998400 = 8849^2 + 7280^2 .

It is a cyclic number.

It is not a de Polignac number, because 131303201 - 2¹⁴ = 131286817 is a prime.

Together with 131303203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131303203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651600 + 65651601.

It is an arithmetic number, because the mean of its divisors is an integer number (65651601).

Almost surely, 2^131303201 is an apocalyptic number.

It is an amenable number.

131303201 is a deficient number, since it is larger than the sum of its proper divisors (1).

131303201 is an equidigital number, since it uses as much as digits as its factorization.

131303201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131303201 is about 11458.7608841445. The cubic root of 131303201 is about 508.2668336432.

Adding to 131303201 its reverse (102303131), we get a palindrome (233606332).

The spelling of 131303201 in words is "one hundred thirty-one million, three hundred three thousand, two hundred one".