43021330039 has 2 divisors, whose sum is σ = 43021330040. Its totient is φ = 43021330038.

The previous prime is 43021330003. The next prime is 43021330043. The reversal of 43021330039 is 93003312034.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43021330039 - 2¹⁷ = 43021198967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43021329989 and 43021330016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43021330049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21510665019 + 21510665020.

It is an arithmetic number, because the mean of its divisors is an integer number (21510665020).

Almost surely, 2^43021330039 is an apocalyptic number.

43021330039 is a deficient number, since it is larger than the sum of its proper divisors (1).

43021330039 is an equidigital number, since it uses as much as digits as its factorization.

43021330039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

The spelling of 43021330039 in words is "forty-three billion, twenty-one million, three hundred thirty thousand, thirty-nine".