20424340211 has 8 divisors (see below), whose sum is σ = 22314916800. Its totient is φ = 18539400040.

The previous prime is 20424340201. The next prime is 20424340213. The reversal of 20424340211 is 11204342402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20424340211 - 2²⁶ = 20357231347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20424340213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1401521 + ... + 1416018.

It is an arithmetic number, because the mean of its divisors is an integer number (2789364600).

Almost surely, 2^20424340211 is an apocalyptic number.

20424340211 is a deficient number, since it is larger than the sum of its proper divisors (1890576589).

20424340211 is a wasteful number, since it uses less digits than its factorization.

20424340211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818209.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20424340211 its reverse (11204342402), we get a palindrome (31628682613).

The spelling of 20424340211 in words is "twenty billion, four hundred twenty-four million, three hundred forty thousand, two hundred eleven".