131302001 has 2 divisors, whose sum is σ = 131302002. Its totient is φ = 131302000.

The previous prime is 131301997. The next prime is 131302037. The reversal of 131302001 is 100203131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80550625 + 50751376 = 8975^2 + 7124^2 .

It is a cyclic number.

It is not a de Polignac number, because 131302001 - 2² = 131301997 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131302051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651000 + 65651001.

It is an arithmetic number, because the mean of its divisors is an integer number (65651001).

Almost surely, 2^131302001 is an apocalyptic number.

It is an amenable number.

131302001 is a deficient number, since it is larger than the sum of its proper divisors (1).

131302001 is an equidigital number, since it uses as much as digits as its factorization.

131302001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 131302001 is about 11458.7085223423. The cubic root of 131302001 is about 508.2652852624.

Adding to 131302001 its reverse (100203131), we get a palindrome (231505132).

The spelling of 131302001 in words is "one hundred thirty-one million, three hundred two thousand, one".