621017067113 has 2 divisors, whose sum is σ = 621017067114. Its totient is φ = 621017067112.

The previous prime is 621017067049. The next prime is 621017067119. The reversal of 621017067113 is 311760710126.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 603865759744 + 17151307369 = 777088^2 + 130963^2 .

It is a cyclic number.

It is not a de Polignac number, because 621017067113 - 2⁶ = 621017067049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (621017067119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310508533556 + 310508533557.

It is an arithmetic number, because the mean of its divisors is an integer number (310508533557).

Almost surely, 2^621017067113 is an apocalyptic number.

It is an amenable number.

621017067113 is a deficient number, since it is larger than the sum of its proper divisors (1).

621017067113 is an equidigital number, since it uses as much as digits as its factorization.

621017067113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

Adding to 621017067113 its reverse (311760710126), we get a palindrome (932777777239).

The spelling of 621017067113 in words is "six hundred twenty-one billion, seventeen million, sixty-seven thousand, one hundred thirteen".