20424120040211 has 4 divisors (see below), whose sum is σ = 20430460968624. Its totient is φ = 20417779111800.

The previous prime is 20424120040169. The next prime is 20424120040237. The reversal of 20424120040211 is 11204002142402.

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 20424120040211 - 2³⁴ = 20406940171027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20424120040241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170459375 + ... + 3170465816.

It is an arithmetic number, because the mean of its divisors is an integer number (5107615242156).

Almost surely, 2^{20424120040211} is an apocalyptic number.

20424120040211 is a deficient number, since it is larger than the sum of its proper divisors (6340928413).

20424120040211 is an equidigital number, since it uses as much as digits as its factorization.

20424120040211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340928412.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 20424120040211 its reverse (11204002142402), we get a palindrome (31628122182613).

The spelling of 20424120040211 in words is "twenty trillion, four hundred twenty-four billion, one hundred twenty million, forty thousand, two hundred eleven".