20031101211 has 12 divisors (see below), whose sum is σ = 29356876136. Its totient is φ = 12140061120.

The previous prime is 20031101191. The next prime is 20031101261. The reversal of 20031101211 is 11210113002.

It is not a de Polignac number, because 20031101211 - 2⁹ = 20031100699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20031101261) 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, 27590686 + ... + 27591411.

Almost surely, 2^20031101211 is an apocalyptic number.

20031101211 is a deficient number, since it is larger than the sum of its proper divisors (9325774925).

20031101211 is a wasteful number, since it uses less digits than its factorization.

20031101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55182122 (or 55182111 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20031101211 its reverse (11210113002), we get a palindrome (31241214213).

The spelling of 20031101211 in words is "twenty billion, thirty-one million, one hundred one thousand, two hundred eleven".