34020421613 has 2 divisors, whose sum is σ = 34020421614. Its totient is φ = 34020421612.

The previous prime is 34020421583. The next prime is 34020421619. The reversal of 34020421613 is 31612402043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31398776809 + 2621644804 = 177197^2 + 51202^2 .

It is a cyclic number.

It is not a de Polignac number, because 34020421613 - 2¹⁶ = 34020356077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34020421619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17010210806 + 17010210807.

It is an arithmetic number, because the mean of its divisors is an integer number (17010210807).

Almost surely, 2^34020421613 is an apocalyptic number.

It is an amenable number.

34020421613 is a deficient number, since it is larger than the sum of its proper divisors (1).

34020421613 is an equidigital number, since it uses as much as digits as its factorization.

34020421613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 34020421613 its reverse (31612402043), we get a palindrome (65632823656).

The spelling of 34020421613 in words is "thirty-four billion, twenty million, four hundred twenty-one thousand, six hundred thirteen".