433243004221 has 2 divisors, whose sum is σ = 433243004222. Its totient is φ = 433243004220.

The previous prime is 433243004209. The next prime is 433243004237. The reversal of 433243004221 is 122400342334.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422610507225 + 10632496996 = 650085^2 + 103114^2 .

It is a cyclic number.

It is not a de Polignac number, because 433243004221 - 2¹³ = 433242996029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 433243004221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (433243004281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 216621502110 + 216621502111.

It is an arithmetic number, because the mean of its divisors is an integer number (216621502111).

Almost surely, 2^433243004221 is an apocalyptic number.

It is an amenable number.

433243004221 is a deficient number, since it is larger than the sum of its proper divisors (1).

433243004221 is an equidigital number, since it uses as much as digits as its factorization.

433243004221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 433243004221 its reverse (122400342334), we get a palindrome (555643346555).

The spelling of 433243004221 in words is "four hundred thirty-three billion, two hundred forty-three million, four thousand, two hundred twenty-one".