43003500013 has 2 divisors, whose sum is σ = 43003500014. Its totient is φ = 43003500012.

The previous prime is 43003499989. The next prime is 43003500017. The reversal of 43003500013 is 31000530034.

43003500013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30221388649 + 12782111364 = 173843^2 + 113058^2 .

It is a cyclic number.

It is not a de Polignac number, because 43003500013 - 2²⁵ = 42969945581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43003500017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21501750006 + 21501750007.

It is an arithmetic number, because the mean of its divisors is an integer number (21501750007).

Almost surely, 2^43003500013 is an apocalyptic number.

It is an amenable number.

43003500013 is a deficient number, since it is larger than the sum of its proper divisors (1).

43003500013 is an equidigital number, since it uses as much as digits as its factorization.

43003500013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 19.

The spelling of 43003500013 in words is "forty-three billion, three million, five hundred thousand, thirteen".