131503301 has 2 divisors, whose sum is σ = 131503302. Its totient is φ = 131503300.

The previous prime is 131503283. The next prime is 131503319. The reversal of 131503301 is 103305131.

It is a balanced prime because it is at equal distance from previous prime (131503283) and next prime (131503319).

It can be written as a sum of positive squares in only one way, i.e., 112572100 + 18931201 = 10610^2 + 4351^2 .

It is an emirp because it is prime and its reverse (103305131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131503301 - 2¹⁴ = 131486917 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131503301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131503391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65751650 + 65751651.

It is an arithmetic number, because the mean of its divisors is an integer number (65751651).

Almost surely, 2^131503301 is an apocalyptic number.

It is an amenable number.

131503301 is a deficient number, since it is larger than the sum of its proper divisors (1).

131503301 is an equidigital number, since it uses as much as digits as its factorization.

131503301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 131503301 is about 11467.4888707162. The cubic root of 131503301 is about 508.5248943053.

Adding to 131503301 its reverse (103305131), we get a palindrome (234808432).

The spelling of 131503301 in words is "one hundred thirty-one million, five hundred three thousand, three hundred one".