20012111130013 has 2 divisors, whose sum is σ = 20012111130014. Its totient is φ = 20012111130012.

The previous prime is 20012111129987. The next prime is 20012111130019. The reversal of 20012111130013 is 31003111121002.

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., 13875006656889 + 6137104473124 = 3724917^2 + 2477318^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20012111130013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012111130019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006055565006 + 10006055565007.

It is an arithmetic number, because the mean of its divisors is an integer number (10006055565007).

Almost surely, 2^{20012111130013} is an apocalyptic number.

It is an amenable number.

20012111130013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012111130013 is an equidigital number, since it uses as much as digits as its factorization.

20012111130013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20012111130013 its reverse (31003111121002), we get a palindrome (51015222251015).

The spelling of 20012111130013 in words is "twenty trillion, twelve billion, one hundred eleven million, one hundred thirty thousand, thirteen".