43240220333 has 2 divisors, whose sum is σ = 43240220334. Its totient is φ = 43240220332.

The previous prime is 43240220297. The next prime is 43240220339. The reversal of 43240220333 is 33302204234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22452924649 + 20787295684 = 149843^2 + 144178^2 .

It is a cyclic number.

It is not a de Polignac number, because 43240220333 - 2⁶ = 43240220269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43240220339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21620110166 + 21620110167.

It is an arithmetic number, because the mean of its divisors is an integer number (21620110167).

Almost surely, 2^43240220333 is an apocalyptic number.

It is an amenable number.

43240220333 is a deficient number, since it is larger than the sum of its proper divisors (1).

43240220333 is an equidigital number, since it uses as much as digits as its factorization.

43240220333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 43240220333 its reverse (33302204234), we get a palindrome (76542424567).

The spelling of 43240220333 in words is "forty-three billion, two hundred forty million, two hundred twenty thousand, three hundred thirty-three".