20413033212109 has 2 divisors, whose sum is σ = 20413033212110. Its totient is φ = 20413033212108.

The previous prime is 20413033212041. The next prime is 20413033212139. The reversal of 20413033212109 is 90121233031402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10978288222500 + 9434744989609 = 3313350^2 + 3071603^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413033212109 - 2¹¹ = 20413033210061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20413033212139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206516606054 + 10206516606055.

It is an arithmetic number, because the mean of its divisors is an integer number (10206516606055).

Almost surely, 2^{20413033212109} is an apocalyptic number.

It is an amenable number.

20413033212109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413033212109 is an equidigital number, since it uses as much as digits as its factorization.

20413033212109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 20413033212109 in words is "twenty trillion, four hundred thirteen billion, thirty-three million, two hundred twelve thousand, one hundred nine".