20013133711489 has 2 divisors, whose sum is σ = 20013133711490. Its totient is φ = 20013133711488.

The previous prime is 20013133711451. The next prime is 20013133711531. The reversal of 20013133711489 is 98411733131002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17800239455089 + 2212894256400 = 4219033^2 + 1487580^2 .

It is a cyclic number.

It is not a de Polignac number, because 20013133711489 - 2³⁵ = 19978773973121 is a prime.

It is not a weakly prime, because it can be changed into another prime (20013133711189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006566855744 + 10006566855745.

It is an arithmetic number, because the mean of its divisors is an integer number (10006566855745).

Almost surely, 2^{20013133711489} is an apocalyptic number.

It is an amenable number.

20013133711489 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013133711489 is an equidigital number, since it uses as much as digits as its factorization.

20013133711489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 20013133711489 in words is "twenty trillion, thirteen billion, one hundred thirty-three million, seven hundred eleven thousand, four hundred eighty-nine".