20211113013 has 32 divisors (see below), whose sum is σ = 33188069376. Its totient is φ = 10654020288.

The previous prime is 20211113011. The next prime is 20211113089. The reversal of 20211113013 is 31031111202.

It is a happy number.

It is not a de Polignac number, because 20211113013 - 2¹ = 20211113011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20211112983 and 20211113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211113011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421420 + ... + 466922.

It is an arithmetic number, because the mean of its divisors is an integer number (1037127168).

Almost surely, 2^20211113013 is an apocalyptic number.

It is an amenable number.

20211113013 is a deficient number, since it is larger than the sum of its proper divisors (12976956363).

20211113013 is a wasteful number, since it uses less digits than its factorization.

20211113013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47153.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20211113013 its reverse (31031111202), we get a palindrome (51242224215).

The spelling of 20211113013 in words is "twenty billion, two hundred eleven million, one hundred thirteen thousand, thirteen".