20340303211 has 4 divisors (see below), whose sum is σ = 20457877392. Its totient is φ = 20222729032.

The previous prime is 20340303167. The next prime is 20340303239. The reversal of 20340303211 is 11230304302.

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 20340303211 - 2⁷ = 20340303083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20340303251) 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 3 ways as a sum of consecutive naturals, for example, 58786831 + ... + 58787176.

It is an arithmetic number, because the mean of its divisors is an integer number (5114469348).

Almost surely, 2^20340303211 is an apocalyptic number.

20340303211 is a deficient number, since it is larger than the sum of its proper divisors (117574181).

20340303211 is a wasteful number, since it uses less digits than its factorization.

20340303211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117574180.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20340303211 its reverse (11230304302), we get a palindrome (31570607513).

The spelling of 20340303211 in words is "twenty billion, three hundred forty million, three hundred three thousand, two hundred eleven".