20240311211 has 4 divisors (see below), whose sum is σ = 20242053000. Its totient is φ = 20238569424.

The previous prime is 20240311181. The next prime is 20240311271. The reversal of 20240311211 is 11211304202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20240311211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20240311211.

It is not an unprimeable number, because it can be changed into a prime (20240311271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853346 + ... + 876743.

It is an arithmetic number, because the mean of its divisors is an integer number (5060513250).

Almost surely, 2^20240311211 is an apocalyptic number.

20240311211 is a deficient number, since it is larger than the sum of its proper divisors (1741789).

20240311211 is a wasteful number, since it uses less digits than its factorization.

20240311211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741788.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20240311211 its reverse (11211304202), we get a palindrome (31451615413).

The spelling of 20240311211 in words is "twenty billion, two hundred forty million, three hundred eleven thousand, two hundred eleven".