131030443 has 2 divisors, whose sum is σ = 131030444. Its totient is φ = 131030442.

The previous prime is 131030437. The next prime is 131030447. The reversal of 131030443 is 344030131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131030443 - 2⁵ = 131030411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131030443.

It is not a weakly prime, because it can be changed into another prime (131030447) 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, 65515221 + 65515222.

It is an arithmetic number, because the mean of its divisors is an integer number (65515222).

Almost surely, 2^131030443 is an apocalyptic number.

131030443 is a deficient number, since it is larger than the sum of its proper divisors (1).

131030443 is an equidigital number, since it uses as much as digits as its factorization.

131030443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131030443 is about 11446.8529736343. The cubic root of 131030443 is about 507.9146463641.

Adding to 131030443 its reverse (344030131), we get a palindrome (475060574).

The spelling of 131030443 in words is "one hundred thirty-one million, thirty thousand, four hundred forty-three".