43420031131303 has 2 divisors, whose sum is σ = 43420031131304. Its totient is φ = 43420031131302.

The previous prime is 43420031131297. The next prime is 43420031131327. The reversal of 43420031131303 is 30313113002434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43420031131303 - 2⁵ = 43420031131271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43420031131343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21710015565651 + 21710015565652.

It is an arithmetic number, because the mean of its divisors is an integer number (21710015565652).

Almost surely, 2^{43420031131303} is an apocalyptic number.

43420031131303 is a deficient number, since it is larger than the sum of its proper divisors (1).

43420031131303 is an equidigital number, since it uses as much as digits as its factorization.

43420031131303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 43420031131303 its reverse (30313113002434), we get a palindrome (73733144133737).

The spelling of 43420031131303 in words is "forty-three trillion, four hundred twenty billion, thirty-one million, one hundred thirty-one thousand, three hundred three".