34431342341021 has 2 divisors, whose sum is σ = 34431342341022. Its totient is φ = 34431342341020.

The previous prime is 34431342341017. The next prime is 34431342341027. The reversal of 34431342341021 is 12014324313443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25172406218521 + 9258936122500 = 5017211^2 + 3042850^2 .

It is a cyclic number.

It is not a de Polignac number, because 34431342341021 - 2² = 34431342341017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34431342341027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17215671170510 + 17215671170511.

It is an arithmetic number, because the mean of its divisors is an integer number (17215671170511).

Almost surely, 2^{34431342341021} is an apocalyptic number.

It is an amenable number.

34431342341021 is a deficient number, since it is larger than the sum of its proper divisors (1).

34431342341021 is an equidigital number, since it uses as much as digits as its factorization.

34431342341021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 34431342341021 its reverse (12014324313443), we get a palindrome (46445666654464).

The spelling of 34431342341021 in words is "thirty-four trillion, four hundred thirty-one billion, three hundred forty-two million, three hundred forty-one thousand, twenty-one".