20013133730713 has 4 divisors (see below), whose sum is σ = 20013169964560. Its totient is φ = 20013097496868.

The previous prime is 20013133730683. The next prime is 20013133730729. The reversal of 20013133730713 is 31703733131002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20013133730713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013133730783) 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 in 3 ways as a sum of consecutive naturals, for example, 17275395 + ... + 18397432.

It is an arithmetic number, because the mean of its divisors is an integer number (5003292491140).

Almost surely, 2^{20013133730713} is an apocalyptic number.

It is an amenable number.

20013133730713 is a deficient number, since it is larger than the sum of its proper divisors (36233847).

20013133730713 is an equidigital number, since it uses as much as digits as its factorization.

20013133730713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36233846.

The product of its (nonzero) digits is 23814, while the sum is 34.

Adding to 20013133730713 its reverse (31703733131002), we get a palindrome (51716866861715).

The spelling of 20013133730713 in words is "twenty trillion, thirteen billion, one hundred thirty-three million, seven hundred thirty thousand, seven hundred thirteen".