20011013033013 has 12 divisors (see below), whose sum is σ = 28905258515328. Its totient is φ = 13340462165160.

The previous prime is 20011013033009. The next prime is 20011013033029. The reversal of 20011013033013 is 31033031011002.

It is a happy number.

20011013033013 is a `hidden beast` number, since 200 + 1 + 1 + 0 + 130 + 330 + 1 + 3 = 666.

It is not a de Polignac number, because 20011013033013 - 2² = 20011013033009 is a prime.

It is a super-2 number, since 2×20011013033013² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011013033003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17170323 + ... + 18298688.

It is an arithmetic number, because the mean of its divisors is an integer number (2408771542944).

Almost surely, 2^{20011013033013} is an apocalyptic number.

It is an amenable number.

20011013033013 is a deficient number, since it is larger than the sum of its proper divisors (8894245482315).

20011013033013 is a wasteful number, since it uses less digits than its factorization.

20011013033013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35531704 (or 35531701 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 20011013033013 its reverse (31033031011002), we get a palindrome (51044044044015).

The spelling of 20011013033013 in words is "twenty trillion, eleven billion, thirteen million, thirty-three thousand, thirteen".