20340424322011 has 4 divisors (see below), whose sum is σ = 20340497983432. Its totient is φ = 20340350660592.

The previous prime is 20340424321999. The next prime is 20340424322021. The reversal of 20340424322011 is 11022342404302.

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 20340424322011 - 2¹³ = 20340424313819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20340424322021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36414945 + ... + 36969298.

It is an arithmetic number, because the mean of its divisors is an integer number (5085124495858).

Almost surely, 2^{20340424322011} is an apocalyptic number.

20340424322011 is a deficient number, since it is larger than the sum of its proper divisors (73661421).

20340424322011 is an equidigital number, since it uses as much as digits as its factorization.

20340424322011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73661420.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20340424322011 its reverse (11022342404302), we get a palindrome (31362766726313).

The spelling of 20340424322011 in words is "twenty trillion, three hundred forty billion, four hundred twenty-four million, three hundred twenty-two thousand, eleven".