34203203204221 has 2 divisors, whose sum is σ = 34203203204222. Its totient is φ = 34203203204220.

The previous prime is 34203203204197. The next prime is 34203203204231. The reversal of 34203203204221 is 12240230230243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26280745925625 + 7922457278596 = 5126475^2 + 2814686^2 .

It is a cyclic number.

It is not a de Polignac number, because 34203203204221 - 2²¹ = 34203201107069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 34203203204221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34203203204231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17101601602110 + 17101601602111.

It is an arithmetic number, because the mean of its divisors is an integer number (17101601602111).

Almost surely, 2^{34203203204221} is an apocalyptic number.

It is an amenable number.

34203203204221 is a deficient number, since it is larger than the sum of its proper divisors (1).

34203203204221 is an equidigital number, since it uses as much as digits as its factorization.

34203203204221 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 34203203204221 its reverse (12240230230243), we get a palindrome (46443433434464).

The spelling of 34203203204221 in words is "thirty-four trillion, two hundred three billion, two hundred three million, two hundred four thousand, two hundred twenty-one".