20043211131 has 20 divisors (see below), whose sum is σ = 31516942600. Its totient is φ = 12658869216.

The previous prime is 20043211081. The next prime is 20043211159. The reversal of 20043211131 is 13111234002.

20043211131 is a `hidden beast` number, since 200 + 432 + 1 + 1 + 1 + 31 = 666.

It is not a de Polignac number, because 20043211131 - 2¹⁴ = 20043194747 is a prime.

It is a super-2 number, since 2×20043211131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20043211831) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6510226 + ... + 6513303.

It is an arithmetic number, because the mean of its divisors is an integer number (1575847130).

Almost surely, 2^20043211131 is an apocalyptic number.

20043211131 is a deficient number, since it is larger than the sum of its proper divisors (11473731469).

20043211131 is a wasteful number, since it uses less digits than its factorization.

20043211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13023560 (or 13023551 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20043211131 its reverse (13111234002), we get a palindrome (33154445133).

The spelling of 20043211131 in words is "twenty billion, forty-three million, two hundred eleven thousand, one hundred thirty-one".