43243345433 has 2 divisors, whose sum is σ = 43243345434. Its totient is φ = 43243345432.

The previous prime is 43243345427. The next prime is 43243345501. The reversal of 43243345433 is 33454334234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31538918464 + 11704426969 = 177592^2 + 108187^2 .

It is a cyclic number.

It is not a de Polignac number, because 43243345433 - 2¹⁰ = 43243344409 is a prime.

It is not a weakly prime, because it can be changed into another prime (43243345633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621672716 + 21621672717.

It is an arithmetic number, because the mean of its divisors is an integer number (21621672717).

Almost surely, 2^43243345433 is an apocalyptic number.

It is an amenable number.

43243345433 is a deficient number, since it is larger than the sum of its proper divisors (1).

43243345433 is an equidigital number, since it uses as much as digits as its factorization.

43243345433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 38.

Adding to 43243345433 its reverse (33454334234), we get a palindrome (76697679667).

The spelling of 43243345433 in words is "forty-three billion, two hundred forty-three million, three hundred forty-five thousand, four hundred thirty-three".