20134443011 has 4 divisors (see below), whose sum is σ = 20134846224. Its totient is φ = 20134039800.

The previous prime is 20134442963. The next prime is 20134443019. The reversal of 20134443011 is 11034443102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20134443011 - 2⁶ = 20134442947 is a prime.

It is a super-2 number, since 2×20134443011² (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 (20134443019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114020 + ... + 230801.

It is an arithmetic number, because the mean of its divisors is an integer number (5033711556).

Almost surely, 2^20134443011 is an apocalyptic number.

20134443011 is a deficient number, since it is larger than the sum of its proper divisors (403213).

20134443011 is an equidigital number, since it uses as much as digits as its factorization.

20134443011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403212.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20134443011 its reverse (11034443102), we get a palindrome (31168886113).

Subtracting from 20134443011 its reverse (11034443102), we obtain a palindrome (9099999909).

The spelling of 20134443011 in words is "twenty billion, one hundred thirty-four million, four hundred forty-three thousand, eleven".