20113005211 has 16 divisors (see below), whose sum is σ = 21759702048. Its totient is φ = 18480672000.

The previous prime is 20113005191. The next prime is 20113005229. The reversal of 20113005211 is 11250031102.

It is a cyclic number.

It is not a de Polignac number, because 20113005211 - 2¹⁹ = 20112480923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113005271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4516536 + ... + 4520986.

It is an arithmetic number, because the mean of its divisors is an integer number (1359981378).

Almost surely, 2^20113005211 is an apocalyptic number.

20113005211 is a deficient number, since it is larger than the sum of its proper divisors (1646696837).

20113005211 is a wasteful number, since it uses less digits than its factorization.

20113005211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5982.

The product of its (nonzero) digits is 60, while the sum is 16.

Adding to 20113005211 its reverse (11250031102), we get a palindrome (31363036313).

The spelling of 20113005211 in words is "twenty billion, one hundred thirteen million, five thousand, two hundred eleven".