20013061705369 has 2 divisors, whose sum is σ = 20013061705370. Its totient is φ = 20013061705368.

The previous prime is 20013061705313. The next prime is 20013061705381. The reversal of 20013061705369 is 96350716031002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15232003952400 + 4781057752969 = 3902820^2 + 2186563^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013061705369 - 2²⁵ = 20013028150937 is a prime.

It is a super-2 number, since 2×20013061705369² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20013061705669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006530852684 + 10006530852685.

It is an arithmetic number, because the mean of its divisors is an integer number (10006530852685).

Almost surely, 2^{20013061705369} is an apocalyptic number.

It is an amenable number.

20013061705369 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013061705369 is an equidigital number, since it uses as much as digits as its factorization.

20013061705369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 43.

The spelling of 20013061705369 in words is "twenty trillion, thirteen billion, sixty-one million, seven hundred five thousand, three hundred sixty-nine".